Home / 21,742.88-32,614.31-5,326.88

Finding the Fourth Proportional to 21,742.88, 32,614.31 and 5,326.88

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Solution

The fourth proportional to 21,742.88, 32,614.31 and 5,326.88 is: 7,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.88 : 32,614.31 = 5,326.88 : x
  2. Step 2: Convert to fraction form
    21,742.88/32,614.31 = 5,326.88/x
  3. Step 3: Cross multiply
    21,742.88x = 32,614.31 × 5,326.88
  4. Step 4: Simplify right side
    21,742.88x = 173,732,365.90
  5. Step 5: Solve for x
    x = 173,732,365.90/21,742.88
  6. Step 6: Final answer
    x = 7,990.31

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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.