Home / 36,310.20-54,465.30-20,729.40

Finding the Fourth Proportional to 36,310.20, 54,465.30 and 20,729.40

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Solution

The fourth proportional to 36,310.20, 54,465.30 and 20,729.40 is: 31,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,310.20 : 54,465.30 = 20,729.40 : x
  2. Step 2: Convert to fraction form
    36,310.20/54,465.30 = 20,729.40/x
  3. Step 3: Cross multiply
    36,310.20x = 54,465.30 × 20,729.40
  4. Step 4: Simplify right side
    36,310.20x = 1,129,032,989.82
  5. Step 5: Solve for x
    x = 1,129,032,989.82/36,310.20
  6. Step 6: Final answer
    x = 31,094.10

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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.