Home / 57,270.28-85,915.74-17,818.12

Finding the Fourth Proportional to 57,270.28, 85,915.74 and 17,818.12

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Solution

The fourth proportional to 57,270.28, 85,915.74 and 17,818.12 is: 26,730.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,270.28 : 85,915.74 = 17,818.12 : x
  2. Step 2: Convert to fraction form
    57,270.28/85,915.74 = 17,818.12/x
  3. Step 3: Cross multiply
    57,270.28x = 85,915.74 × 17,818.12
  4. Step 4: Simplify right side
    57,270.28x = 1,530,856,965.21
  5. Step 5: Solve for x
    x = 1,530,856,965.21/57,270.28
  6. Step 6: Final answer
    x = 26,730.39

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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.