Home / 21,580.22-29,769.28-14,854.16

Finding the Fourth Proportional to 21,580.22, 29,769.28 and 14,854.16

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Solution

The fourth proportional to 21,580.22, 29,769.28 and 14,854.16 is: 20,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580.22 : 29,769.28 = 14,854.16 : x
  2. Step 2: Convert to fraction form
    21,580.22/29,769.28 = 14,854.16/x
  3. Step 3: Cross multiply
    21,580.22x = 29,769.28 × 14,854.16
  4. Step 4: Simplify right side
    21,580.22x = 442,197,685.49
  5. Step 5: Solve for x
    x = 442,197,685.49/21,580.22
  6. Step 6: Final answer
    x = 20,490.88

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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.