Home / 28,468.79-42,729.10-15,152.96

Finding the Fourth Proportional to 28,468.79, 42,729.10 and 15,152.96

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Solution

The fourth proportional to 28,468.79, 42,729.10 and 15,152.96 is: 22,743.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.79 : 42,729.10 = 15,152.96 : x
  2. Step 2: Convert to fraction form
    28,468.79/42,729.10 = 15,152.96/x
  3. Step 3: Cross multiply
    28,468.79x = 42,729.10 × 15,152.96
  4. Step 4: Simplify right side
    28,468.79x = 647,472,343.14
  5. Step 5: Solve for x
    x = 647,472,343.14/28,468.79
  6. Step 6: Final answer
    x = 22,743.23

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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.