Home / 36,781.80-55,043.10-25,636.20

Finding the Fourth Proportional to 36,781.80, 55,043.10 and 25,636.20

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Solution

The fourth proportional to 36,781.80, 55,043.10 and 25,636.20 is: 38,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,781.80 : 55,043.10 = 25,636.20 : x
  2. Step 2: Convert to fraction form
    36,781.80/55,043.10 = 25,636.20/x
  3. Step 3: Cross multiply
    36,781.80x = 55,043.10 × 25,636.20
  4. Step 4: Simplify right side
    36,781.80x = 1,411,095,920.22
  5. Step 5: Solve for x
    x = 1,411,095,920.22/36,781.80
  6. Step 6: Final answer
    x = 38,363.97

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1.5x scale

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.