Home / 28,468.29-42,728.35-15,152.47

Finding the Fourth Proportional to 28,468.29, 42,728.35 and 15,152.47

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Solution

The fourth proportional to 28,468.29, 42,728.35 and 15,152.47 is: 22,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.29 : 42,728.35 = 15,152.47 : x
  2. Step 2: Convert to fraction form
    28,468.29/42,728.35 = 15,152.47/x
  3. Step 3: Cross multiply
    28,468.29x = 42,728.35 × 15,152.47
  4. Step 4: Simplify right side
    28,468.29x = 647,439,827.88
  5. Step 5: Solve for x
    x = 647,439,827.88/28,468.29
  6. Step 6: Final answer
    x = 22,742.49

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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.