Home / 19,101.17-28,672.70-15,177.65

Finding the Fourth Proportional to 19,101.17, 28,672.70 and 15,177.65

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Solution

The fourth proportional to 19,101.17, 28,672.70 and 15,177.65 is: 22,783.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.17 : 28,672.70 = 15,177.65 : x
  2. Step 2: Convert to fraction form
    19,101.17/28,672.70 = 15,177.65/x
  3. Step 3: Cross multiply
    19,101.17x = 28,672.70 × 15,177.65
  4. Step 4: Simplify right side
    19,101.17x = 435,183,985.90
  5. Step 5: Solve for x
    x = 435,183,985.90/19,101.17
  6. Step 6: Final answer
    x = 22,783.11

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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.