Home / 22,686.43-31,305.13-21,014.59

Finding the Fourth Proportional to 22,686.43, 31,305.13 and 21,014.59

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Solution

The fourth proportional to 22,686.43, 31,305.13 and 21,014.59 is: 28,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.43 : 31,305.13 = 21,014.59 : x
  2. Step 2: Convert to fraction form
    22,686.43/31,305.13 = 21,014.59/x
  3. Step 3: Cross multiply
    22,686.43x = 31,305.13 × 21,014.59
  4. Step 4: Simplify right side
    22,686.43x = 657,864,471.85
  5. Step 5: Solve for x
    x = 657,864,471.85/22,686.43
  6. Step 6: Final answer
    x = 28,998.15

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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.