Home / 38,292.48-57,438.72-21,660.48

Finding the Fourth Proportional to 38,292.48, 57,438.72 and 21,660.48

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Solution

The fourth proportional to 38,292.48, 57,438.72 and 21,660.48 is: 32,490.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,292.48 : 57,438.72 = 21,660.48 : x
  2. Step 2: Convert to fraction form
    38,292.48/57,438.72 = 21,660.48/x
  3. Step 3: Cross multiply
    38,292.48x = 57,438.72 × 21,660.48
  4. Step 4: Simplify right side
    38,292.48x = 1,244,150,245.79
  5. Step 5: Solve for x
    x = 1,244,150,245.79/38,292.48
  6. Step 6: Final answer
    x = 32,490.72

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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.