Home / 28,149.30-42,217.20-16,277.40

Finding the Fourth Proportional to 28,149.30, 42,217.20 and 16,277.40

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Solution

The fourth proportional to 28,149.30, 42,217.20 and 16,277.40 is: 24,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.30 : 42,217.20 = 16,277.40 : x
  2. Step 2: Convert to fraction form
    28,149.30/42,217.20 = 16,277.40/x
  3. Step 3: Cross multiply
    28,149.30x = 42,217.20 × 16,277.40
  4. Step 4: Simplify right side
    28,149.30x = 687,186,251.28
  5. Step 5: Solve for x
    x = 687,186,251.28/28,149.30
  6. Step 6: Final answer
    x = 24,412.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.