Home / 21,479.85-32,200.33-7,625.61

Finding the Fourth Proportional to 21,479.85, 32,200.33 and 7,625.61

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Solution

The fourth proportional to 21,479.85, 32,200.33 and 7,625.61 is: 11,431.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.85 : 32,200.33 = 7,625.61 : x
  2. Step 2: Convert to fraction form
    21,479.85/32,200.33 = 7,625.61/x
  3. Step 3: Cross multiply
    21,479.85x = 32,200.33 × 7,625.61
  4. Step 4: Simplify right side
    21,479.85x = 245,547,158.45
  5. Step 5: Solve for x
    x = 245,547,158.45/21,479.85
  6. Step 6: Final answer
    x = 11,431.51

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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.