Home / 42,008.13-63,012.96-12,425.94

Finding the Fourth Proportional to 42,008.13, 63,012.96 and 12,425.94

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Solution

The fourth proportional to 42,008.13, 63,012.96 and 12,425.94 is: 18,639.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,008.13 : 63,012.96 = 12,425.94 : x
  2. Step 2: Convert to fraction form
    42,008.13/63,012.96 = 12,425.94/x
  3. Step 3: Cross multiply
    42,008.13x = 63,012.96 × 12,425.94
  4. Step 4: Simplify right side
    42,008.13x = 782,995,260.18
  5. Step 5: Solve for x
    x = 782,995,260.18/42,008.13
  6. Step 6: Final answer
    x = 18,639.14

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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.