Home / 15,431.36-23,148.89-5,434.04

Finding the Fourth Proportional to 15,431.36, 23,148.89 and 5,434.04

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Solution

The fourth proportional to 15,431.36, 23,148.89 and 5,434.04 is: 8,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.36 : 23,148.89 = 5,434.04 : x
  2. Step 2: Convert to fraction form
    15,431.36/23,148.89 = 5,434.04/x
  3. Step 3: Cross multiply
    15,431.36x = 23,148.89 × 5,434.04
  4. Step 4: Simplify right side
    15,431.36x = 125,791,851.30
  5. Step 5: Solve for x
    x = 125,791,851.30/15,431.36
  6. Step 6: Final answer
    x = 8,151.70

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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.