Home / 20,324.28-28,026.90-12,358.74

Finding the Fourth Proportional to 20,324.28, 28,026.90 and 12,358.74

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Solution

The fourth proportional to 20,324.28, 28,026.90 and 12,358.74 is: 17,042.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324.28 : 28,026.90 = 12,358.74 : x
  2. Step 2: Convert to fraction form
    20,324.28/28,026.90 = 12,358.74/x
  3. Step 3: Cross multiply
    20,324.28x = 28,026.90 × 12,358.74
  4. Step 4: Simplify right side
    20,324.28x = 346,377,170.11
  5. Step 5: Solve for x
    x = 346,377,170.11/20,324.28
  6. Step 6: Final answer
    x = 17,042.53

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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.