Home / 26,221.44-36,154.25-21,423.70

Finding the Fourth Proportional to 26,221.44, 36,154.25 and 21,423.70

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Solution

The fourth proportional to 26,221.44, 36,154.25 and 21,423.70 is: 29,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,221.44 : 36,154.25 = 21,423.70 : x
  2. Step 2: Convert to fraction form
    26,221.44/36,154.25 = 21,423.70/x
  3. Step 3: Cross multiply
    26,221.44x = 36,154.25 × 21,423.70
  4. Step 4: Simplify right side
    26,221.44x = 774,557,805.73
  5. Step 5: Solve for x
    x = 774,557,805.73/26,221.44
  6. Step 6: Final answer
    x = 29,539.10

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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.