Home / 28,511.92-39,305.28-19,545.22

Finding the Fourth Proportional to 28,511.92, 39,305.28 and 19,545.22

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Solution

The fourth proportional to 28,511.92, 39,305.28 and 19,545.22 is: 26,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.92 : 39,305.28 = 19,545.22 : x
  2. Step 2: Convert to fraction form
    28,511.92/39,305.28 = 19,545.22/x
  3. Step 3: Cross multiply
    28,511.92x = 39,305.28 × 19,545.22
  4. Step 4: Simplify right side
    28,511.92x = 768,230,344.76
  5. Step 5: Solve for x
    x = 768,230,344.76/28,511.92
  6. Step 6: Final answer
    x = 26,944.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.