Home / 19,959.31-27,543.36-11,006.65

Finding the Fourth Proportional to 19,959.31, 27,543.36 and 11,006.65

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Solution

The fourth proportional to 19,959.31, 27,543.36 and 11,006.65 is: 15,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.31 : 27,543.36 = 11,006.65 : x
  2. Step 2: Convert to fraction form
    19,959.31/27,543.36 = 11,006.65/x
  3. Step 3: Cross multiply
    19,959.31x = 27,543.36 × 11,006.65
  4. Step 4: Simplify right side
    19,959.31x = 303,160,123.34
  5. Step 5: Solve for x
    x = 303,160,123.34/19,959.31
  6. Step 6: Final answer
    x = 15,188.91

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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.