Home / 20,377.82-30,545.76-8,538.56

Finding the Fourth Proportional to 20,377.82, 30,545.76 and 8,538.56

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Solution

The fourth proportional to 20,377.82, 30,545.76 and 8,538.56 is: 12,799.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377.82 : 30,545.76 = 8,538.56 : x
  2. Step 2: Convert to fraction form
    20,377.82/30,545.76 = 8,538.56/x
  3. Step 3: Cross multiply
    20,377.82x = 30,545.76 × 8,538.56
  4. Step 4: Simplify right side
    20,377.82x = 260,816,804.51
  5. Step 5: Solve for x
    x = 260,816,804.51/20,377.82
  6. Step 6: Final answer
    x = 12,799.05

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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.