Home / 19,824.30-27,356.18-10,869.95

Finding the Fourth Proportional to 19,824.30, 27,356.18 and 10,869.95

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Solution

The fourth proportional to 19,824.30, 27,356.18 and 10,869.95 is: 14,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,824.30 : 27,356.18 = 10,869.95 : x
  2. Step 2: Convert to fraction form
    19,824.30/27,356.18 = 10,869.95/x
  3. Step 3: Cross multiply
    19,824.30x = 27,356.18 × 10,869.95
  4. Step 4: Simplify right side
    19,824.30x = 297,360,117.66
  5. Step 5: Solve for x
    x = 297,360,117.66/19,824.30
  6. Step 6: Final answer
    x = 14,999.78

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Why These Related Problems?

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