Home / 21,929.11-32,884.09-7,888.57

Finding the Fourth Proportional to 21,929.11, 32,884.09 and 7,888.57

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Solution

The fourth proportional to 21,929.11, 32,884.09 and 7,888.57 is: 11,829.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.11 : 32,884.09 = 7,888.57 : x
  2. Step 2: Convert to fraction form
    21,929.11/32,884.09 = 7,888.57/x
  3. Step 3: Cross multiply
    21,929.11x = 32,884.09 × 7,888.57
  4. Step 4: Simplify right side
    21,929.11x = 259,408,445.85
  5. Step 5: Solve for x
    x = 259,408,445.85/21,929.11
  6. Step 6: Final answer
    x = 11,829.41

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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.