Home / 20,764.23-31,150.45-7,616.72

Finding the Fourth Proportional to 20,764.23, 31,150.45 and 7,616.72

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Solution

The fourth proportional to 20,764.23, 31,150.45 and 7,616.72 is: 11,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.23 : 31,150.45 = 7,616.72 : x
  2. Step 2: Convert to fraction form
    20,764.23/31,150.45 = 7,616.72/x
  3. Step 3: Cross multiply
    20,764.23x = 31,150.45 × 7,616.72
  4. Step 4: Simplify right side
    20,764.23x = 237,264,080.73
  5. Step 5: Solve for x
    x = 237,264,080.73/20,764.23
  6. Step 6: Final answer
    x = 11,426.58

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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.