Home / 21,565.16-29,755.41-12,610.91

Finding the Fourth Proportional to 21,565.16, 29,755.41 and 12,610.91

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Solution

The fourth proportional to 21,565.16, 29,755.41 and 12,610.91 is: 17,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.16 : 29,755.41 = 12,610.91 : x
  2. Step 2: Convert to fraction form
    21,565.16/29,755.41 = 12,610.91/x
  3. Step 3: Cross multiply
    21,565.16x = 29,755.41 × 12,610.91
  4. Step 4: Simplify right side
    21,565.16x = 375,242,797.52
  5. Step 5: Solve for x
    x = 375,242,797.52/21,565.16
  6. Step 6: Final answer
    x = 17,400.42

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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.