Home / 28,350.72-42,534.72-16,639.20

Finding the Fourth Proportional to 28,350.72, 42,534.72 and 16,639.20

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Solution

The fourth proportional to 28,350.72, 42,534.72 and 16,639.20 is: 24,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.72 : 42,534.72 = 16,639.20 : x
  2. Step 2: Convert to fraction form
    28,350.72/42,534.72 = 16,639.20/x
  3. Step 3: Cross multiply
    28,350.72x = 42,534.72 × 16,639.20
  4. Step 4: Simplify right side
    28,350.72x = 707,743,713.02
  5. Step 5: Solve for x
    x = 707,743,713.02/28,350.72
  6. Step 6: Final answer
    x = 24,963.87

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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.