Home / 38,799.68-58,225-21,281.80

Finding the Fourth Proportional to 38,799.68, 58,225 and 21,281.80

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Solution

The fourth proportional to 38,799.68, 58,225 and 21,281.80 is: 31,936.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,799.68 : 58,225 = 21,281.80 : x
  2. Step 2: Convert to fraction form
    38,799.68/58,225 = 21,281.80/x
  3. Step 3: Cross multiply
    38,799.68x = 58,225 × 21,281.80
  4. Step 4: Simplify right side
    38,799.68x = 1,239,132,805
  5. Step 5: Solve for x
    x = 1,239,132,805/38,799.68
  6. Step 6: Final answer
    x = 31,936.68

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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.