Home / 20,816.28-28,729.98-16,373.88

Finding the Fourth Proportional to 20,816.28, 28,729.98 and 16,373.88

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Solution

The fourth proportional to 20,816.28, 28,729.98 and 16,373.88 is: 22,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816.28 : 28,729.98 = 16,373.88 : x
  2. Step 2: Convert to fraction form
    20,816.28/28,729.98 = 16,373.88/x
  3. Step 3: Cross multiply
    20,816.28x = 28,729.98 × 16,373.88
  4. Step 4: Simplify right side
    20,816.28x = 470,421,244.92
  5. Step 5: Solve for x
    x = 470,421,244.92/20,816.28
  6. Step 6: Final answer
    x = 22,598.72

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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.