Home / 42,340.15-63,510.33-14,279.91

Finding the Fourth Proportional to 42,340.15, 63,510.33 and 14,279.91

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Solution

The fourth proportional to 42,340.15, 63,510.33 and 14,279.91 is: 21,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,340.15 : 63,510.33 = 14,279.91 : x
  2. Step 2: Convert to fraction form
    42,340.15/63,510.33 = 14,279.91/x
  3. Step 3: Cross multiply
    42,340.15x = 63,510.33 × 14,279.91
  4. Step 4: Simplify right side
    42,340.15x = 906,921,990.95
  5. Step 5: Solve for x
    x = 906,921,990.95/42,340.15
  6. Step 6: Final answer
    x = 21,419.91

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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.