Home / 55,506.99-83,221.55-20,442.15

Finding the Fourth Proportional to 55,506.99, 83,221.55 and 20,442.15

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Solution

The fourth proportional to 55,506.99, 83,221.55 and 20,442.15 is: 30,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,506.99 : 83,221.55 = 20,442.15 : x
  2. Step 2: Convert to fraction form
    55,506.99/83,221.55 = 20,442.15/x
  3. Step 3: Cross multiply
    55,506.99x = 83,221.55 × 20,442.15
  4. Step 4: Simplify right side
    55,506.99x = 1,701,227,306.12
  5. Step 5: Solve for x
    x = 1,701,227,306.12/55,506.99
  6. Step 6: Final answer
    x = 30,648.88

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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.