Home / 20,711.67-28,598.95-16,883.90

Finding the Fourth Proportional to 20,711.67, 28,598.95 and 16,883.90

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Solution

The fourth proportional to 20,711.67, 28,598.95 and 16,883.90 is: 23,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.67 : 28,598.95 = 16,883.90 : x
  2. Step 2: Convert to fraction form
    20,711.67/28,598.95 = 16,883.90/x
  3. Step 3: Cross multiply
    20,711.67x = 28,598.95 × 16,883.90
  4. Step 4: Simplify right side
    20,711.67x = 482,861,811.91
  5. Step 5: Solve for x
    x = 482,861,811.91/20,711.67
  6. Step 6: Final answer
    x = 23,313.52

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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.