Home / 26,855.30-40,244.55-19,780.10

Finding the Fourth Proportional to 26,855.30, 40,244.55 and 19,780.10

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Solution

The fourth proportional to 26,855.30, 40,244.55 and 19,780.10 is: 29,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,855.30 : 40,244.55 = 19,780.10 : x
  2. Step 2: Convert to fraction form
    26,855.30/40,244.55 = 19,780.10/x
  3. Step 3: Cross multiply
    26,855.30x = 40,244.55 × 19,780.10
  4. Step 4: Simplify right side
    26,855.30x = 796,041,223.46
  5. Step 5: Solve for x
    x = 796,041,223.46/26,855.30
  6. Step 6: Final answer
    x = 29,641.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.