Home / 21,679.19-32,518.33-9,992.41

Finding the Fourth Proportional to 21,679.19, 32,518.33 and 9,992.41

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Solution

The fourth proportional to 21,679.19, 32,518.33 and 9,992.41 is: 14,988.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,679.19 : 32,518.33 = 9,992.41 : x
  2. Step 2: Convert to fraction form
    21,679.19/32,518.33 = 9,992.41/x
  3. Step 3: Cross multiply
    21,679.19x = 32,518.33 × 9,992.41
  4. Step 4: Simplify right side
    21,679.19x = 324,936,513.21
  5. Step 5: Solve for x
    x = 324,936,513.21/21,679.19
  6. Step 6: Final answer
    x = 14,988.41

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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.