Home / 20,541.17-28,346.28-11,587.97

Finding the Fourth Proportional to 20,541.17, 28,346.28 and 11,587.97

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Solution

The fourth proportional to 20,541.17, 28,346.28 and 11,587.97 is: 15,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.17 : 28,346.28 = 11,587.97 : x
  2. Step 2: Convert to fraction form
    20,541.17/28,346.28 = 11,587.97/x
  3. Step 3: Cross multiply
    20,541.17x = 28,346.28 × 11,587.97
  4. Step 4: Simplify right side
    20,541.17x = 328,475,700.52
  5. Step 5: Solve for x
    x = 328,475,700.52/20,541.17
  6. Step 6: Final answer
    x = 15,991.09

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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.