Home / 42,123.30-63,184.95-12,551.43

Finding the Fourth Proportional to 42,123.30, 63,184.95 and 12,551.43

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Solution

The fourth proportional to 42,123.30, 63,184.95 and 12,551.43 is: 18,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,123.30 : 63,184.95 = 12,551.43 : x
  2. Step 2: Convert to fraction form
    42,123.30/63,184.95 = 12,551.43/x
  3. Step 3: Cross multiply
    42,123.30x = 63,184.95 × 12,551.43
  4. Step 4: Simplify right side
    42,123.30x = 793,061,476.98
  5. Step 5: Solve for x
    x = 793,061,476.98/42,123.30
  6. Step 6: Final answer
    x = 18,827.15

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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.