Home / 20,545.48-30,824.40-8,693.16

Finding the Fourth Proportional to 20,545.48, 30,824.40 and 8,693.16

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Solution

The fourth proportional to 20,545.48, 30,824.40 and 8,693.16 is: 13,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.48 : 30,824.40 = 8,693.16 : x
  2. Step 2: Convert to fraction form
    20,545.48/30,824.40 = 8,693.16/x
  3. Step 3: Cross multiply
    20,545.48x = 30,824.40 × 8,693.16
  4. Step 4: Simplify right side
    20,545.48x = 267,961,441.10
  5. Step 5: Solve for x
    x = 267,961,441.10/20,545.48
  6. Step 6: Final answer
    x = 13,042.35

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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.