Home / 35,540.80-53,311.20-19,956.40

Finding the Fourth Proportional to 35,540.80, 53,311.20 and 19,956.40

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Solution

The fourth proportional to 35,540.80, 53,311.20 and 19,956.40 is: 29,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,540.80 : 53,311.20 = 19,956.40 : x
  2. Step 2: Convert to fraction form
    35,540.80/53,311.20 = 19,956.40/x
  3. Step 3: Cross multiply
    35,540.80x = 53,311.20 × 19,956.40
  4. Step 4: Simplify right side
    35,540.80x = 1,063,899,631.68
  5. Step 5: Solve for x
    x = 1,063,899,631.68/35,540.80
  6. Step 6: Final answer
    x = 29,934.60

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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.