Home / 42,220.98-63,302.31-18,517.14

Finding the Fourth Proportional to 42,220.98, 63,302.31 and 18,517.14

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Solution

The fourth proportional to 42,220.98, 63,302.31 and 18,517.14 is: 27,762.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,220.98 : 63,302.31 = 18,517.14 : x
  2. Step 2: Convert to fraction form
    42,220.98/63,302.31 = 18,517.14/x
  3. Step 3: Cross multiply
    42,220.98x = 63,302.31 × 18,517.14
  4. Step 4: Simplify right side
    42,220.98x = 1,172,177,736.59
  5. Step 5: Solve for x
    x = 1,172,177,736.59/42,220.98
  6. Step 6: Final answer
    x = 27,762.92

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1.5x scale

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.