Home / 38,845.17-53,605.80-21,848.13

Finding the Fourth Proportional to 38,845.17, 53,605.80 and 21,848.13

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Solution

The fourth proportional to 38,845.17, 53,605.80 and 21,848.13 is: 30,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,845.17 : 53,605.80 = 21,848.13 : x
  2. Step 2: Convert to fraction form
    38,845.17/53,605.80 = 21,848.13/x
  3. Step 3: Cross multiply
    38,845.17x = 53,605.80 × 21,848.13
  4. Step 4: Simplify right side
    38,845.17x = 1,171,186,487.15
  5. Step 5: Solve for x
    x = 1,171,186,487.15/38,845.17
  6. Step 6: Final answer
    x = 30,150.12

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Double scale
Find fourth proportional to 38,846.17, 53,607.18 and 21,849.13
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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.