Home / 36,218.40-54,254.70-20,617.80

Finding the Fourth Proportional to 36,218.40, 54,254.70 and 20,617.80

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Solution

The fourth proportional to 36,218.40, 54,254.70 and 20,617.80 is: 30,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.40 : 54,254.70 = 20,617.80 : x
  2. Step 2: Convert to fraction form
    36,218.40/54,254.70 = 20,617.80/x
  3. Step 3: Cross multiply
    36,218.40x = 54,254.70 × 20,617.80
  4. Step 4: Simplify right side
    36,218.40x = 1,118,612,553.66
  5. Step 5: Solve for x
    x = 1,118,612,553.66/36,218.40
  6. Step 6: Final answer
    x = 30,885.20

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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.