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Finding the Fourth Proportional to 36,622.80, 54,955.80 and 13,246.20

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Solution

The fourth proportional to 36,622.80, 54,955.80 and 13,246.20 is: 19,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,622.80 : 54,955.80 = 13,246.20 : x
  2. Step 2: Convert to fraction form
    36,622.80/54,955.80 = 13,246.20/x
  3. Step 3: Cross multiply
    36,622.80x = 54,955.80 × 13,246.20
  4. Step 4: Simplify right side
    36,622.80x = 727,955,517.96
  5. Step 5: Solve for x
    x = 727,955,517.96/36,622.80
  6. Step 6: Final answer
    x = 19,877.11

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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.