Home / 36,987.60-55,481.40-21,397.20

Finding the Fourth Proportional to 36,987.60, 55,481.40 and 21,397.20

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Solution

The fourth proportional to 36,987.60, 55,481.40 and 21,397.20 is: 32,095.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,987.60 : 55,481.40 = 21,397.20 : x
  2. Step 2: Convert to fraction form
    36,987.60/55,481.40 = 21,397.20/x
  3. Step 3: Cross multiply
    36,987.60x = 55,481.40 × 21,397.20
  4. Step 4: Simplify right side
    36,987.60x = 1,187,146,612.08
  5. Step 5: Solve for x
    x = 1,187,146,612.08/36,987.60
  6. Step 6: Final answer
    x = 32,095.80

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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.