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Finding the Fourth Proportional to 22,273.70, 30,716.50 and 13,319.76

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Solution

The fourth proportional to 22,273.70, 30,716.50 and 13,319.76 is: 18,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,273.70 : 30,716.50 = 13,319.76 : x
  2. Step 2: Convert to fraction form
    22,273.70/30,716.50 = 13,319.76/x
  3. Step 3: Cross multiply
    22,273.70x = 30,716.50 × 13,319.76
  4. Step 4: Simplify right side
    22,273.70x = 409,136,408.04
  5. Step 5: Solve for x
    x = 409,136,408.04/22,273.70
  6. Step 6: Final answer
    x = 18,368.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.