Home / 25,170.72-34,737.12-15,099.60

Finding the Fourth Proportional to 25,170.72, 34,737.12 and 15,099.60

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Solution

The fourth proportional to 25,170.72, 34,737.12 and 15,099.60 is: 20,838.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,170.72 : 34,737.12 = 15,099.60 : x
  2. Step 2: Convert to fraction form
    25,170.72/34,737.12 = 15,099.60/x
  3. Step 3: Cross multiply
    25,170.72x = 34,737.12 × 15,099.60
  4. Step 4: Simplify right side
    25,170.72x = 524,516,617.15
  5. Step 5: Solve for x
    x = 524,516,617.15/25,170.72
  6. Step 6: Final answer
    x = 20,838.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.