Home / 15,820.28-23,734.05-5,432

Finding the Fourth Proportional to 15,820.28, 23,734.05 and 5,432

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Solution

The fourth proportional to 15,820.28, 23,734.05 and 5,432 is: 8,149.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.28 : 23,734.05 = 5,432 : x
  2. Step 2: Convert to fraction form
    15,820.28/23,734.05 = 5,432/x
  3. Step 3: Cross multiply
    15,820.28x = 23,734.05 × 5,432
  4. Step 4: Simplify right side
    15,820.28x = 128,923,359.60
  5. Step 5: Solve for x
    x = 128,923,359.60/15,820.28
  6. Step 6: Final answer
    x = 8,149.25

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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.