Home / 28,193.43-38,906.49-15,446.52

Finding the Fourth Proportional to 28,193.43, 38,906.49 and 15,446.52

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Solution

The fourth proportional to 28,193.43, 38,906.49 and 15,446.52 is: 21,315.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.43 : 38,906.49 = 15,446.52 : x
  2. Step 2: Convert to fraction form
    28,193.43/38,906.49 = 15,446.52/x
  3. Step 3: Cross multiply
    28,193.43x = 38,906.49 × 15,446.52
  4. Step 4: Simplify right side
    28,193.43x = 600,969,875.91
  5. Step 5: Solve for x
    x = 600,969,875.91/28,193.43
  6. Step 6: Final answer
    x = 21,315.95

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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.