Home / 27,132.05-40,643.40-15,431.60

Finding the Fourth Proportional to 27,132.05, 40,643.40 and 15,431.60

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Solution

The fourth proportional to 27,132.05, 40,643.40 and 15,431.60 is: 23,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,132.05 : 40,643.40 = 15,431.60 : x
  2. Step 2: Convert to fraction form
    27,132.05/40,643.40 = 15,431.60/x
  3. Step 3: Cross multiply
    27,132.05x = 40,643.40 × 15,431.60
  4. Step 4: Simplify right side
    27,132.05x = 627,192,691.44
  5. Step 5: Solve for x
    x = 627,192,691.44/27,132.05
  6. Step 6: Final answer
    x = 23,116.30

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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.