Home / 28,291.22-39,041.98-15,545.42

Finding the Fourth Proportional to 28,291.22, 39,041.98 and 15,545.42

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Solution

The fourth proportional to 28,291.22, 39,041.98 and 15,545.42 is: 21,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291.22 : 39,041.98 = 15,545.42 : x
  2. Step 2: Convert to fraction form
    28,291.22/39,041.98 = 15,545.42/x
  3. Step 3: Cross multiply
    28,291.22x = 39,041.98 × 15,545.42
  4. Step 4: Simplify right side
    28,291.22x = 606,923,976.73
  5. Step 5: Solve for x
    x = 606,923,976.73/28,291.22
  6. Step 6: Final answer
    x = 21,452.73

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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.