Home / 20,876.13-28,808.95-11,444.69

Finding the Fourth Proportional to 20,876.13, 28,808.95 and 11,444.69

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Solution

The fourth proportional to 20,876.13, 28,808.95 and 11,444.69 is: 15,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.13 : 28,808.95 = 11,444.69 : x
  2. Step 2: Convert to fraction form
    20,876.13/28,808.95 = 11,444.69/x
  3. Step 3: Cross multiply
    20,876.13x = 28,808.95 × 11,444.69
  4. Step 4: Simplify right side
    20,876.13x = 329,709,501.98
  5. Step 5: Solve for x
    x = 329,709,501.98/20,876.13
  6. Step 6: Final answer
    x = 15,793.61

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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.