Home / 42,560.49-63,838.33-18,861.21

Finding the Fourth Proportional to 42,560.49, 63,838.33 and 18,861.21

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Solution

The fourth proportional to 42,560.49, 63,838.33 and 18,861.21 is: 28,290.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,560.49 : 63,838.33 = 18,861.21 : x
  2. Step 2: Convert to fraction form
    42,560.49/63,838.33 = 18,861.21/x
  3. Step 3: Cross multiply
    42,560.49x = 63,838.33 × 18,861.21
  4. Step 4: Simplify right side
    42,560.49x = 1,204,068,148.18
  5. Step 5: Solve for x
    x = 1,204,068,148.18/42,560.49
  6. Step 6: Final answer
    x = 28,290.75

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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.