Home / 20,876.19-28,807.83-11,444.82

Finding the Fourth Proportional to 20,876.19, 28,807.83 and 11,444.82

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Solution

The fourth proportional to 20,876.19, 28,807.83 and 11,444.82 is: 15,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.19 : 28,807.83 = 11,444.82 : x
  2. Step 2: Convert to fraction form
    20,876.19/28,807.83 = 11,444.82/x
  3. Step 3: Cross multiply
    20,876.19x = 28,807.83 × 11,444.82
  4. Step 4: Simplify right side
    20,876.19x = 329,700,428.94
  5. Step 5: Solve for x
    x = 329,700,428.94/20,876.19
  6. Step 6: Final answer
    x = 15,793.13

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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.