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Finding the Fourth Proportional to 36,695.70, 55,023.30 and 11,728.80

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Solution

The fourth proportional to 36,695.70, 55,023.30 and 11,728.80 is: 17,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,695.70 : 55,023.30 = 11,728.80 : x
  2. Step 2: Convert to fraction form
    36,695.70/55,023.30 = 11,728.80/x
  3. Step 3: Cross multiply
    36,695.70x = 55,023.30 × 11,728.80
  4. Step 4: Simplify right side
    36,695.70x = 645,357,281.04
  5. Step 5: Solve for x
    x = 645,357,281.04/36,695.70
  6. Step 6: Final answer
    x = 17,586.73

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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.