Home / 28,291.95-39,042.70-15,545.27

Finding the Fourth Proportional to 28,291.95, 39,042.70 and 15,545.27

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Solution

The fourth proportional to 28,291.95, 39,042.70 and 15,545.27 is: 21,452.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291.95 : 39,042.70 = 15,545.27 : x
  2. Step 2: Convert to fraction form
    28,291.95/39,042.70 = 15,545.27/x
  3. Step 3: Cross multiply
    28,291.95x = 39,042.70 × 15,545.27
  4. Step 4: Simplify right side
    28,291.95x = 606,929,250.78
  5. Step 5: Solve for x
    x = 606,929,250.78/28,291.95
  6. Step 6: Final answer
    x = 21,452.37

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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.