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Finding the Fourth Proportional to 15,266.70, 22,900.05 and 13,905.90

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Solution

The fourth proportional to 15,266.70, 22,900.05 and 13,905.90 is: 20,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.70 : 22,900.05 = 13,905.90 : x
  2. Step 2: Convert to fraction form
    15,266.70/22,900.05 = 13,905.90/x
  3. Step 3: Cross multiply
    15,266.70x = 22,900.05 × 13,905.90
  4. Step 4: Simplify right side
    15,266.70x = 318,445,805.30
  5. Step 5: Solve for x
    x = 318,445,805.30/15,266.70
  6. Step 6: Final answer
    x = 20,858.85

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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.