Home / 18,957.30-28,441.14-5,809.38

Finding the Fourth Proportional to 18,957.30, 28,441.14 and 5,809.38

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Solution

The fourth proportional to 18,957.30, 28,441.14 and 5,809.38 is: 8,715.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.30 : 28,441.14 = 5,809.38 : x
  2. Step 2: Convert to fraction form
    18,957.30/28,441.14 = 5,809.38/x
  3. Step 3: Cross multiply
    18,957.30x = 28,441.14 × 5,809.38
  4. Step 4: Simplify right side
    18,957.30x = 165,225,389.89
  5. Step 5: Solve for x
    x = 165,225,389.89/18,957.30
  6. Step 6: Final answer
    x = 8,715.66

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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.