Home / 20,945.59-31,410.12-8,463.26

Finding the Fourth Proportional to 20,945.59, 31,410.12 and 8,463.26

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Solution

The fourth proportional to 20,945.59, 31,410.12 and 8,463.26 is: 12,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,945.59 : 31,410.12 = 8,463.26 : x
  2. Step 2: Convert to fraction form
    20,945.59/31,410.12 = 8,463.26/x
  3. Step 3: Cross multiply
    20,945.59x = 31,410.12 × 8,463.26
  4. Step 4: Simplify right side
    20,945.59x = 265,832,012.19
  5. Step 5: Solve for x
    x = 265,832,012.19/20,945.59
  6. Step 6: Final answer
    x = 12,691.55

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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.