Home / 20,711.17-28,598.26-16,883.40

Finding the Fourth Proportional to 20,711.17, 28,598.26 and 16,883.40

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Solution

The fourth proportional to 20,711.17, 28,598.26 and 16,883.40 is: 23,312.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.17 : 28,598.26 = 16,883.40 : x
  2. Step 2: Convert to fraction form
    20,711.17/28,598.26 = 16,883.40/x
  3. Step 3: Cross multiply
    20,711.17x = 28,598.26 × 16,883.40
  4. Step 4: Simplify right side
    20,711.17x = 482,835,862.88
  5. Step 5: Solve for x
    x = 482,835,862.88/20,711.17
  6. Step 6: Final answer
    x = 23,312.83

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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.