Home / 42,426.95-63,640.60-14,347.15

Finding the Fourth Proportional to 42,426.95, 63,640.60 and 14,347.15

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Solution

The fourth proportional to 42,426.95, 63,640.60 and 14,347.15 is: 21,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,426.95 : 63,640.60 = 14,347.15 : x
  2. Step 2: Convert to fraction form
    42,426.95/63,640.60 = 14,347.15/x
  3. Step 3: Cross multiply
    42,426.95x = 63,640.60 × 14,347.15
  4. Step 4: Simplify right side
    42,426.95x = 913,061,039.32
  5. Step 5: Solve for x
    x = 913,061,039.32/42,426.95
  6. Step 6: Final answer
    x = 21,520.78

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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.