Home / 42,290.97-63,443.79-14,213.78

Finding the Fourth Proportional to 42,290.97, 63,443.79 and 14,213.78

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Solution

The fourth proportional to 42,290.97, 63,443.79 and 14,213.78 is: 21,323.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,290.97 : 63,443.79 = 14,213.78 : x
  2. Step 2: Convert to fraction form
    42,290.97/63,443.79 = 14,213.78/x
  3. Step 3: Cross multiply
    42,290.97x = 63,443.79 × 14,213.78
  4. Step 4: Simplify right side
    42,290.97x = 901,775,756.21
  5. Step 5: Solve for x
    x = 901,775,756.21/42,290.97
  6. Step 6: Final answer
    x = 21,323.13

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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.