Home / 21,272.68-31,908.72-9,577.60

Finding the Fourth Proportional to 21,272.68, 31,908.72 and 9,577.60

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Solution

The fourth proportional to 21,272.68, 31,908.72 and 9,577.60 is: 14,366.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.68 : 31,908.72 = 9,577.60 : x
  2. Step 2: Convert to fraction form
    21,272.68/31,908.72 = 9,577.60/x
  3. Step 3: Cross multiply
    21,272.68x = 31,908.72 × 9,577.60
  4. Step 4: Simplify right side
    21,272.68x = 305,608,956.67
  5. Step 5: Solve for x
    x = 305,608,956.67/21,272.68
  6. Step 6: Final answer
    x = 14,366.26

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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.