Home / 38,660.76-58,013.46-20,891.48

Finding the Fourth Proportional to 38,660.76, 58,013.46 and 20,891.48

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Solution

The fourth proportional to 38,660.76, 58,013.46 and 20,891.48 is: 31,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.76 : 58,013.46 = 20,891.48 : x
  2. Step 2: Convert to fraction form
    38,660.76/58,013.46 = 20,891.48/x
  3. Step 3: Cross multiply
    38,660.76x = 58,013.46 × 20,891.48
  4. Step 4: Simplify right side
    38,660.76x = 1,211,986,749.25
  5. Step 5: Solve for x
    x = 1,211,986,749.25/38,660.76
  6. Step 6: Final answer
    x = 31,349.27

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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.