Home / 15,429.28-23,143.92-3,742.48

Finding the Fourth Proportional to 15,429.28, 23,143.92 and 3,742.48

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Solution

The fourth proportional to 15,429.28, 23,143.92 and 3,742.48 is: 5,613.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429.28 : 23,143.92 = 3,742.48 : x
  2. Step 2: Convert to fraction form
    15,429.28/23,143.92 = 3,742.48/x
  3. Step 3: Cross multiply
    15,429.28x = 23,143.92 × 3,742.48
  4. Step 4: Simplify right side
    15,429.28x = 86,615,657.72
  5. Step 5: Solve for x
    x = 86,615,657.72/15,429.28
  6. Step 6: Final answer
    x = 5,613.72

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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.