Home / 42,339.97-63,510.07-14,279.74

Finding the Fourth Proportional to 42,339.97, 63,510.07 and 14,279.74

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Solution

The fourth proportional to 42,339.97, 63,510.07 and 14,279.74 is: 21,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,339.97 : 63,510.07 = 14,279.74 : x
  2. Step 2: Convert to fraction form
    42,339.97/63,510.07 = 14,279.74/x
  3. Step 3: Cross multiply
    42,339.97x = 63,510.07 × 14,279.74
  4. Step 4: Simplify right side
    42,339.97x = 906,907,265.14
  5. Step 5: Solve for x
    x = 906,907,265.14/42,339.97
  6. Step 6: Final answer
    x = 21,419.65

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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.