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Finding the Fourth Proportional to 36,999.70, 55,499.55 and 13,623.10

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Solution

The fourth proportional to 36,999.70, 55,499.55 and 13,623.10 is: 20,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,999.70 : 55,499.55 = 13,623.10 : x
  2. Step 2: Convert to fraction form
    36,999.70/55,499.55 = 13,623.10/x
  3. Step 3: Cross multiply
    36,999.70x = 55,499.55 × 13,623.10
  4. Step 4: Simplify right side
    36,999.70x = 756,075,919.61
  5. Step 5: Solve for x
    x = 756,075,919.61/36,999.70
  6. Step 6: Final answer
    x = 20,434.65

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Similar ratio
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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.