Home / 21,540.09-32,310.15-6,750.16

Finding the Fourth Proportional to 21,540.09, 32,310.15 and 6,750.16

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Solution

The fourth proportional to 21,540.09, 32,310.15 and 6,750.16 is: 10,125.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.09 : 32,310.15 = 6,750.16 : x
  2. Step 2: Convert to fraction form
    21,540.09/32,310.15 = 6,750.16/x
  3. Step 3: Cross multiply
    21,540.09x = 32,310.15 × 6,750.16
  4. Step 4: Simplify right side
    21,540.09x = 218,098,486.82
  5. Step 5: Solve for x
    x = 218,098,486.82/21,540.09
  6. Step 6: Final answer
    x = 10,125.24

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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.