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Finding the Fourth Proportional to 43,266.85, 64,907.03 and 13,681.87

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Solution

The fourth proportional to 43,266.85, 64,907.03 and 13,681.87 is: 20,524.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,266.85 : 64,907.03 = 13,681.87 : x
  2. Step 2: Convert to fraction form
    43,266.85/64,907.03 = 13,681.87/x
  3. Step 3: Cross multiply
    43,266.85x = 64,907.03 × 13,681.87
  4. Step 4: Simplify right side
    43,266.85x = 888,049,546.55
  5. Step 5: Solve for x
    x = 888,049,546.55/43,266.85
  6. Step 6: Final answer
    x = 20,524.94

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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.