Home / 20,501.65-28,294.97-11,550.88

Finding the Fourth Proportional to 20,501.65, 28,294.97 and 11,550.88

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Solution

The fourth proportional to 20,501.65, 28,294.97 and 11,550.88 is: 15,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.65 : 28,294.97 = 11,550.88 : x
  2. Step 2: Convert to fraction form
    20,501.65/28,294.97 = 11,550.88/x
  3. Step 3: Cross multiply
    20,501.65x = 28,294.97 × 11,550.88
  4. Step 4: Simplify right side
    20,501.65x = 326,831,745.32
  5. Step 5: Solve for x
    x = 326,831,745.32/20,501.65
  6. Step 6: Final answer
    x = 15,941.73

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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.