Home / 38,789.28-58,209.44-21,271.41

Finding the Fourth Proportional to 38,789.28, 58,209.44 and 21,271.41

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Solution

The fourth proportional to 38,789.28, 58,209.44 and 21,271.41 is: 31,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,789.28 : 58,209.44 = 21,271.41 : x
  2. Step 2: Convert to fraction form
    38,789.28/58,209.44 = 21,271.41/x
  3. Step 3: Cross multiply
    38,789.28x = 58,209.44 × 21,271.41
  4. Step 4: Simplify right side
    38,789.28x = 1,238,196,757.75
  5. Step 5: Solve for x
    x = 1,238,196,757.75/38,789.28
  6. Step 6: Final answer
    x = 31,921.11

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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.