Home / 28,132.65-42,199.04-11,492.70

Finding the Fourth Proportional to 28,132.65, 42,199.04 and 11,492.70

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Solution

The fourth proportional to 28,132.65, 42,199.04 and 11,492.70 is: 17,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132.65 : 42,199.04 = 11,492.70 : x
  2. Step 2: Convert to fraction form
    28,132.65/42,199.04 = 11,492.70/x
  3. Step 3: Cross multiply
    28,132.65x = 42,199.04 × 11,492.70
  4. Step 4: Simplify right side
    28,132.65x = 484,980,849.54
  5. Step 5: Solve for x
    x = 484,980,849.54/28,132.65
  6. Step 6: Final answer
    x = 17,239.07

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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.