Home / 21,680.39-32,519.84-9,192.38

Finding the Fourth Proportional to 21,680.39, 32,519.84 and 9,192.38

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Solution

The fourth proportional to 21,680.39, 32,519.84 and 9,192.38 is: 13,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680.39 : 32,519.84 = 9,192.38 : x
  2. Step 2: Convert to fraction form
    21,680.39/32,519.84 = 9,192.38/x
  3. Step 3: Cross multiply
    21,680.39x = 32,519.84 × 9,192.38
  4. Step 4: Simplify right side
    21,680.39x = 298,934,518.26
  5. Step 5: Solve for x
    x = 298,934,518.26/21,680.39
  6. Step 6: Final answer
    x = 13,788.25

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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.