Home / 42,487.68-63,741.76-17,865.60

Finding the Fourth Proportional to 42,487.68, 63,741.76 and 17,865.60

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Solution

The fourth proportional to 42,487.68, 63,741.76 and 17,865.60 is: 26,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,487.68 : 63,741.76 = 17,865.60 : x
  2. Step 2: Convert to fraction form
    42,487.68/63,741.76 = 17,865.60/x
  3. Step 3: Cross multiply
    42,487.68x = 63,741.76 × 17,865.60
  4. Step 4: Simplify right side
    42,487.68x = 1,138,784,787.46
  5. Step 5: Solve for x
    x = 1,138,784,787.46/42,487.68
  6. Step 6: Final answer
    x = 26,802.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.