Home / 28,442.13-42,663.04-7,382.15

Finding the Fourth Proportional to 28,442.13, 42,663.04 and 7,382.15

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Solution

The fourth proportional to 28,442.13, 42,663.04 and 7,382.15 is: 11,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.13 : 42,663.04 = 7,382.15 : x
  2. Step 2: Convert to fraction form
    28,442.13/42,663.04 = 7,382.15/x
  3. Step 3: Cross multiply
    28,442.13x = 42,663.04 × 7,382.15
  4. Step 4: Simplify right side
    28,442.13x = 314,944,960.74
  5. Step 5: Solve for x
    x = 314,944,960.74/28,442.13
  6. Step 6: Final answer
    x = 11,073.18

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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.