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Finding the Fourth Proportional to 28,675.88, 43,012.28 and 8,952.16

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Solution

The fourth proportional to 28,675.88, 43,012.28 and 8,952.16 is: 13,427.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,675.88 : 43,012.28 = 8,952.16 : x
  2. Step 2: Convert to fraction form
    28,675.88/43,012.28 = 8,952.16/x
  3. Step 3: Cross multiply
    28,675.88x = 43,012.28 × 8,952.16
  4. Step 4: Simplify right side
    28,675.88x = 385,052,812.52
  5. Step 5: Solve for x
    x = 385,052,812.52/28,675.88
  6. Step 6: Final answer
    x = 13,427.76

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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.