Home / 21,295.46-31,943.46-11,934.02

Finding the Fourth Proportional to 21,295.46, 31,943.46 and 11,934.02

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Solution

The fourth proportional to 21,295.46, 31,943.46 and 11,934.02 is: 17,901.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.46 : 31,943.46 = 11,934.02 : x
  2. Step 2: Convert to fraction form
    21,295.46/31,943.46 = 11,934.02/x
  3. Step 3: Cross multiply
    21,295.46x = 31,943.46 × 11,934.02
  4. Step 4: Simplify right side
    21,295.46x = 381,213,890.51
  5. Step 5: Solve for x
    x = 381,213,890.51/21,295.46
  6. Step 6: Final answer
    x = 17,901.18

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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.