Home / 21,278.40-31,934.60-9,592.52

Finding the Fourth Proportional to 21,278.40, 31,934.60 and 9,592.52

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Solution

The fourth proportional to 21,278.40, 31,934.60 and 9,592.52 is: 14,396.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278.40 : 31,934.60 = 9,592.52 : x
  2. Step 2: Convert to fraction form
    21,278.40/31,934.60 = 9,592.52/x
  3. Step 3: Cross multiply
    21,278.40x = 31,934.60 × 9,592.52
  4. Step 4: Simplify right side
    21,278.40x = 306,333,289.19
  5. Step 5: Solve for x
    x = 306,333,289.19/21,278.40
  6. Step 6: Final answer
    x = 14,396.44

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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.