Home / 38,456.40-53,071.56-25,687.20

Finding the Fourth Proportional to 38,456.40, 53,071.56 and 25,687.20

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Solution

The fourth proportional to 38,456.40, 53,071.56 and 25,687.20 is: 35,449.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,456.40 : 53,071.56 = 25,687.20 : x
  2. Step 2: Convert to fraction form
    38,456.40/53,071.56 = 25,687.20/x
  3. Step 3: Cross multiply
    38,456.40x = 53,071.56 × 25,687.20
  4. Step 4: Simplify right side
    38,456.40x = 1,363,259,776.03
  5. Step 5: Solve for x
    x = 1,363,259,776.03/38,456.40
  6. Step 6: Final answer
    x = 35,449.49

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Half scale
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Double scale
Find fourth proportional to 38,457.40, 53,072.94 and 25,688.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.