Home / 15,329.30-21,154.11-9,043.70

Finding the Fourth Proportional to 15,329.30, 21,154.11 and 9,043.70

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Solution

The fourth proportional to 15,329.30, 21,154.11 and 9,043.70 is: 12,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,329.30 : 21,154.11 = 9,043.70 : x
  2. Step 2: Convert to fraction form
    15,329.30/21,154.11 = 9,043.70/x
  3. Step 3: Cross multiply
    15,329.30x = 21,154.11 × 9,043.70
  4. Step 4: Simplify right side
    15,329.30x = 191,311,424.61
  5. Step 5: Solve for x
    x = 191,311,424.61/15,329.30
  6. Step 6: Final answer
    x = 12,480.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.