Home / 36,860.80-55,230.40-21,251.20

Finding the Fourth Proportional to 36,860.80, 55,230.40 and 21,251.20

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Solution

The fourth proportional to 36,860.80, 55,230.40 and 21,251.20 is: 31,841.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,860.80 : 55,230.40 = 21,251.20 : x
  2. Step 2: Convert to fraction form
    36,860.80/55,230.40 = 21,251.20/x
  3. Step 3: Cross multiply
    36,860.80x = 55,230.40 × 21,251.20
  4. Step 4: Simplify right side
    36,860.80x = 1,173,712,276.48
  5. Step 5: Solve for x
    x = 1,173,712,276.48/36,860.80
  6. Step 6: Final answer
    x = 31,841.75

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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.