Home / 18,427.30-27,641.19-5,280.10

Finding the Fourth Proportional to 18,427.30, 27,641.19 and 5,280.10

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Solution

The fourth proportional to 18,427.30, 27,641.19 and 5,280.10 is: 7,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.30 : 27,641.19 = 5,280.10 : x
  2. Step 2: Convert to fraction form
    18,427.30/27,641.19 = 5,280.10/x
  3. Step 3: Cross multiply
    18,427.30x = 27,641.19 × 5,280.10
  4. Step 4: Simplify right side
    18,427.30x = 145,948,247.32
  5. Step 5: Solve for x
    x = 145,948,247.32/18,427.30
  6. Step 6: Final answer
    x = 7,920.22

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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.