Home / 28,295.80-39,049.22-15,550.14

Finding the Fourth Proportional to 28,295.80, 39,049.22 and 15,550.14

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Solution

The fourth proportional to 28,295.80, 39,049.22 and 15,550.14 is: 21,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,295.80 : 39,049.22 = 15,550.14 : x
  2. Step 2: Convert to fraction form
    28,295.80/39,049.22 = 15,550.14/x
  3. Step 3: Cross multiply
    28,295.80x = 39,049.22 × 15,550.14
  4. Step 4: Simplify right side
    28,295.80x = 607,221,023.20
  5. Step 5: Solve for x
    x = 607,221,023.20/28,295.80
  6. Step 6: Final answer
    x = 21,459.76

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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.