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Finding the Fourth Proportional to 36,047.80, 54,114.90 and 20,265.40

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Solution

The fourth proportional to 36,047.80, 54,114.90 and 20,265.40 is: 30,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,047.80 : 54,114.90 = 20,265.40 : x
  2. Step 2: Convert to fraction form
    36,047.80/54,114.90 = 20,265.40/x
  3. Step 3: Cross multiply
    36,047.80x = 54,114.90 × 20,265.40
  4. Step 4: Simplify right side
    36,047.80x = 1,096,660,094.46
  5. Step 5: Solve for x
    x = 1,096,660,094.46/36,047.80
  6. Step 6: Final answer
    x = 30,422.39

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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.