Home / 20,545.13-30,799.19-7,388.25

Finding the Fourth Proportional to 20,545.13, 30,799.19 and 7,388.25

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Solution

The fourth proportional to 20,545.13, 30,799.19 and 7,388.25 is: 11,075.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.13 : 30,799.19 = 7,388.25 : x
  2. Step 2: Convert to fraction form
    20,545.13/30,799.19 = 7,388.25/x
  3. Step 3: Cross multiply
    20,545.13x = 30,799.19 × 7,388.25
  4. Step 4: Simplify right side
    20,545.13x = 227,552,078.58
  5. Step 5: Solve for x
    x = 227,552,078.58/20,545.13
  6. Step 6: Final answer
    x = 11,075.72

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1.5x scale

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.