Home / 38,929.28-58,394.40-12,634.08

Finding the Fourth Proportional to 38,929.28, 58,394.40 and 12,634.08

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Solution

The fourth proportional to 38,929.28, 58,394.40 and 12,634.08 is: 18,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,929.28 : 58,394.40 = 12,634.08 : x
  2. Step 2: Convert to fraction form
    38,929.28/58,394.40 = 12,634.08/x
  3. Step 3: Cross multiply
    38,929.28x = 58,394.40 × 12,634.08
  4. Step 4: Simplify right side
    38,929.28x = 737,759,521.15
  5. Step 5: Solve for x
    x = 737,759,521.15/38,929.28
  6. Step 6: Final answer
    x = 18,951.28

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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.