Home / 21,043.11-31,569.52-6,251.70

Finding the Fourth Proportional to 21,043.11, 31,569.52 and 6,251.70

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Solution

The fourth proportional to 21,043.11, 31,569.52 and 6,251.70 is: 9,378.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.11 : 31,569.52 = 6,251.70 : x
  2. Step 2: Convert to fraction form
    21,043.11/31,569.52 = 6,251.70/x
  3. Step 3: Cross multiply
    21,043.11x = 31,569.52 × 6,251.70
  4. Step 4: Simplify right side
    21,043.11x = 197,363,168.18
  5. Step 5: Solve for x
    x = 197,363,168.18/21,043.11
  6. Step 6: Final answer
    x = 9,378.99

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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.