Home / 42,534.09-63,810.36-12,951.15

Finding the Fourth Proportional to 42,534.09, 63,810.36 and 12,951.15

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Solution

The fourth proportional to 42,534.09, 63,810.36 and 12,951.15 is: 19,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,534.09 : 63,810.36 = 12,951.15 : x
  2. Step 2: Convert to fraction form
    42,534.09/63,810.36 = 12,951.15/x
  3. Step 3: Cross multiply
    42,534.09x = 63,810.36 × 12,951.15
  4. Step 4: Simplify right side
    42,534.09x = 826,417,543.91
  5. Step 5: Solve for x
    x = 826,417,543.91/42,534.09
  6. Step 6: Final answer
    x = 19,429.53

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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.