Home / 38,671.31-57,892.14-21,087.83

Finding the Fourth Proportional to 38,671.31, 57,892.14 and 21,087.83

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Solution

The fourth proportional to 38,671.31, 57,892.14 and 21,087.83 is: 31,569.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,671.31 : 57,892.14 = 21,087.83 : x
  2. Step 2: Convert to fraction form
    38,671.31/57,892.14 = 21,087.83/x
  3. Step 3: Cross multiply
    38,671.31x = 57,892.14 × 21,087.83
  4. Step 4: Simplify right side
    38,671.31x = 1,220,819,606.66
  5. Step 5: Solve for x
    x = 1,220,819,606.66/38,671.31
  6. Step 6: Final answer
    x = 31,569.13

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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.