Home / 38,603.14-57,894.28-13,639.88

Finding the Fourth Proportional to 38,603.14, 57,894.28 and 13,639.88

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Solution

The fourth proportional to 38,603.14, 57,894.28 and 13,639.88 is: 20,456.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,603.14 : 57,894.28 = 13,639.88 : x
  2. Step 2: Convert to fraction form
    38,603.14/57,894.28 = 13,639.88/x
  3. Step 3: Cross multiply
    38,603.14x = 57,894.28 × 13,639.88
  4. Step 4: Simplify right side
    38,603.14x = 789,671,142.52
  5. Step 5: Solve for x
    x = 789,671,142.52/38,603.14
  6. Step 6: Final answer
    x = 20,456.14

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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.