Home / 38,691.40-53,405.20-22,785.08

Finding the Fourth Proportional to 38,691.40, 53,405.20 and 22,785.08

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Solution

The fourth proportional to 38,691.40, 53,405.20 and 22,785.08 is: 31,449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,691.40 : 53,405.20 = 22,785.08 : x
  2. Step 2: Convert to fraction form
    38,691.40/53,405.20 = 22,785.08/x
  3. Step 3: Cross multiply
    38,691.40x = 53,405.20 × 22,785.08
  4. Step 4: Simplify right side
    38,691.40x = 1,216,841,754.42
  5. Step 5: Solve for x
    x = 1,216,841,754.42/38,691.40
  6. Step 6: Final answer
    x = 31,449.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.