Home / 28,291.55-39,042.36-15,545.54

Finding the Fourth Proportional to 28,291.55, 39,042.36 and 15,545.54

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Solution

The fourth proportional to 28,291.55, 39,042.36 and 15,545.54 is: 21,452.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291.55 : 39,042.36 = 15,545.54 : x
  2. Step 2: Convert to fraction form
    28,291.55/39,042.36 = 15,545.54/x
  3. Step 3: Cross multiply
    28,291.55x = 39,042.36 × 15,545.54
  4. Step 4: Simplify right side
    28,291.55x = 606,934,666.68
  5. Step 5: Solve for x
    x = 606,934,666.68/28,291.55
  6. Step 6: Final answer
    x = 21,452.86

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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.