Home / 20,240.04-30,356.40-5,445.54

Finding the Fourth Proportional to 20,240.04, 30,356.40 and 5,445.54

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Solution

The fourth proportional to 20,240.04, 30,356.40 and 5,445.54 is: 8,167.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.04 : 30,356.40 = 5,445.54 : x
  2. Step 2: Convert to fraction form
    20,240.04/30,356.40 = 5,445.54/x
  3. Step 3: Cross multiply
    20,240.04x = 30,356.40 × 5,445.54
  4. Step 4: Simplify right side
    20,240.04x = 165,306,990.46
  5. Step 5: Solve for x
    x = 165,306,990.46/20,240.04
  6. Step 6: Final answer
    x = 8,167.33

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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.