Home / 21,575.43-29,766.95-12,616.59

Finding the Fourth Proportional to 21,575.43, 29,766.95 and 12,616.59

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Solution

The fourth proportional to 21,575.43, 29,766.95 and 12,616.59 is: 17,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.43 : 29,766.95 = 12,616.59 : x
  2. Step 2: Convert to fraction form
    21,575.43/29,766.95 = 12,616.59/x
  3. Step 3: Cross multiply
    21,575.43x = 29,766.95 × 12,616.59
  4. Step 4: Simplify right side
    21,575.43x = 375,557,254.87
  5. Step 5: Solve for x
    x = 375,557,254.87/21,575.43
  6. Step 6: Final answer
    x = 17,406.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.