Home / 17,921.31-24,731.51-9,964.28

Finding the Fourth Proportional to 17,921.31, 24,731.51 and 9,964.28

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Solution

The fourth proportional to 17,921.31, 24,731.51 and 9,964.28 is: 13,750.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.31 : 24,731.51 = 9,964.28 : x
  2. Step 2: Convert to fraction form
    17,921.31/24,731.51 = 9,964.28/x
  3. Step 3: Cross multiply
    17,921.31x = 24,731.51 × 9,964.28
  4. Step 4: Simplify right side
    17,921.31x = 246,431,516.98
  5. Step 5: Solve for x
    x = 246,431,516.98/17,921.31
  6. Step 6: Final answer
    x = 13,750.75

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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.