Home / 28,613.44-42,937.44-10,143.04

Finding the Fourth Proportional to 28,613.44, 42,937.44 and 10,143.04

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Solution

The fourth proportional to 28,613.44, 42,937.44 and 10,143.04 is: 15,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.44 : 42,937.44 = 10,143.04 : x
  2. Step 2: Convert to fraction form
    28,613.44/42,937.44 = 10,143.04/x
  3. Step 3: Cross multiply
    28,613.44x = 42,937.44 × 10,143.04
  4. Step 4: Simplify right side
    28,613.44x = 435,516,171.42
  5. Step 5: Solve for x
    x = 435,516,171.42/28,613.44
  6. Step 6: Final answer
    x = 15,220.69

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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.