Home / 42,240.33-63,362.61-12,655.35

Finding the Fourth Proportional to 42,240.33, 63,362.61 and 12,655.35

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Solution

The fourth proportional to 42,240.33, 63,362.61 and 12,655.35 is: 18,983.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,240.33 : 63,362.61 = 12,655.35 : x
  2. Step 2: Convert to fraction form
    42,240.33/63,362.61 = 12,655.35/x
  3. Step 3: Cross multiply
    42,240.33x = 63,362.61 × 12,655.35
  4. Step 4: Simplify right side
    42,240.33x = 801,876,006.46
  5. Step 5: Solve for x
    x = 801,876,006.46/42,240.33
  6. Step 6: Final answer
    x = 18,983.66

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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.