Home / 38,969.66-53,778.18-21,064.68

Finding the Fourth Proportional to 38,969.66, 53,778.18 and 21,064.68

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Solution

The fourth proportional to 38,969.66, 53,778.18 and 21,064.68 is: 29,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,969.66 : 53,778.18 = 21,064.68 : x
  2. Step 2: Convert to fraction form
    38,969.66/53,778.18 = 21,064.68/x
  3. Step 3: Cross multiply
    38,969.66x = 53,778.18 × 21,064.68
  4. Step 4: Simplify right side
    38,969.66x = 1,132,820,152.68
  5. Step 5: Solve for x
    x = 1,132,820,152.68/38,969.66
  6. Step 6: Final answer
    x = 29,069.29

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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.