Home / 42,125.97-63,143.99-21,024.45

Finding the Fourth Proportional to 42,125.97, 63,143.99 and 21,024.45

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Solution

The fourth proportional to 42,125.97, 63,143.99 and 21,024.45 is: 31,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,125.97 : 63,143.99 = 21,024.45 : x
  2. Step 2: Convert to fraction form
    42,125.97/63,143.99 = 21,024.45/x
  3. Step 3: Cross multiply
    42,125.97x = 63,143.99 × 21,024.45
  4. Step 4: Simplify right side
    42,125.97x = 1,327,567,555.43
  5. Step 5: Solve for x
    x = 1,327,567,555.43/42,125.97
  6. Step 6: Final answer
    x = 31,514.23

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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.