Home / 42,472.36-63,711.54-12,892.60

Finding the Fourth Proportional to 42,472.36, 63,711.54 and 12,892.60

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Solution

The fourth proportional to 42,472.36, 63,711.54 and 12,892.60 is: 19,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,472.36 : 63,711.54 = 12,892.60 : x
  2. Step 2: Convert to fraction form
    42,472.36/63,711.54 = 12,892.60/x
  3. Step 3: Cross multiply
    42,472.36x = 63,711.54 × 12,892.60
  4. Step 4: Simplify right side
    42,472.36x = 821,407,400.60
  5. Step 5: Solve for x
    x = 821,407,400.60/42,472.36
  6. Step 6: Final answer
    x = 19,339.81

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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.