Home / 36,116.40-54,206.60-21,306.80

Finding the Fourth Proportional to 36,116.40, 54,206.60 and 21,306.80

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Solution

The fourth proportional to 36,116.40, 54,206.60 and 21,306.80 is: 31,979.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,116.40 : 54,206.60 = 21,306.80 : x
  2. Step 2: Convert to fraction form
    36,116.40/54,206.60 = 21,306.80/x
  3. Step 3: Cross multiply
    36,116.40x = 54,206.60 × 21,306.80
  4. Step 4: Simplify right side
    36,116.40x = 1,154,969,184.88
  5. Step 5: Solve for x
    x = 1,154,969,184.88/36,116.40
  6. Step 6: Final answer
    x = 31,979.08

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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.