Home / 21,655.51-32,486.66-9,175.57

Finding the Fourth Proportional to 21,655.51, 32,486.66 and 9,175.57

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Solution

The fourth proportional to 21,655.51, 32,486.66 and 9,175.57 is: 13,764.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.51 : 32,486.66 = 9,175.57 : x
  2. Step 2: Convert to fraction form
    21,655.51/32,486.66 = 9,175.57/x
  3. Step 3: Cross multiply
    21,655.51x = 32,486.66 × 9,175.57
  4. Step 4: Simplify right side
    21,655.51x = 298,083,622.90
  5. Step 5: Solve for x
    x = 298,083,622.90/21,655.51
  6. Step 6: Final answer
    x = 13,764.79

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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.