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Finding the Fourth Proportional to 27,898, 38,499.51 and 15,323.02

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Solution

The fourth proportional to 27,898, 38,499.51 and 15,323.02 is: 21,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,898 : 38,499.51 = 15,323.02 : x
  2. Step 2: Convert to fraction form
    27,898/38,499.51 = 15,323.02/x
  3. Step 3: Cross multiply
    27,898x = 38,499.51 × 15,323.02
  4. Step 4: Simplify right side
    27,898x = 589,928,761.72
  5. Step 5: Solve for x
    x = 589,928,761.72/27,898
  6. Step 6: Final answer
    x = 21,145.92

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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.