Home / 20,456.15-30,665.66-7,305.46

Finding the Fourth Proportional to 20,456.15, 30,665.66 and 7,305.46

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Solution

The fourth proportional to 20,456.15, 30,665.66 and 7,305.46 is: 10,951.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,456.15 : 30,665.66 = 7,305.46 : x
  2. Step 2: Convert to fraction form
    20,456.15/30,665.66 = 7,305.46/x
  3. Step 3: Cross multiply
    20,456.15x = 30,665.66 × 7,305.46
  4. Step 4: Simplify right side
    20,456.15x = 224,026,639.31
  5. Step 5: Solve for x
    x = 224,026,639.31/20,456.15
  6. Step 6: Final answer
    x = 10,951.56

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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.