Home / 38,729.75-53,444.89-21,732.41

Finding the Fourth Proportional to 38,729.75, 53,444.89 and 21,732.41

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Solution

The fourth proportional to 38,729.75, 53,444.89 and 21,732.41 is: 29,989.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,729.75 : 53,444.89 = 21,732.41 : x
  2. Step 2: Convert to fraction form
    38,729.75/53,444.89 = 21,732.41/x
  3. Step 3: Cross multiply
    38,729.75x = 53,444.89 × 21,732.41
  4. Step 4: Simplify right side
    38,729.75x = 1,161,486,341.17
  5. Step 5: Solve for x
    x = 1,161,486,341.17/38,729.75
  6. Step 6: Final answer
    x = 29,989.51

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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.