Home / 20,270.88-28,000.68-16,306.92

Finding the Fourth Proportional to 20,270.88, 28,000.68 and 16,306.92

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Solution

The fourth proportional to 20,270.88, 28,000.68 and 16,306.92 is: 22,525.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.88 : 28,000.68 = 16,306.92 : x
  2. Step 2: Convert to fraction form
    20,270.88/28,000.68 = 16,306.92/x
  3. Step 3: Cross multiply
    20,270.88x = 28,000.68 × 16,306.92
  4. Step 4: Simplify right side
    20,270.88x = 456,604,848.71
  5. Step 5: Solve for x
    x = 456,604,848.71/20,270.88
  6. Step 6: Final answer
    x = 22,525.16

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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.