Home / 21,418.29-32,128.34-6,627.49

Finding the Fourth Proportional to 21,418.29, 32,128.34 and 6,627.49

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Solution

The fourth proportional to 21,418.29, 32,128.34 and 6,627.49 is: 9,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418.29 : 32,128.34 = 6,627.49 : x
  2. Step 2: Convert to fraction form
    21,418.29/32,128.34 = 6,627.49/x
  3. Step 3: Cross multiply
    21,418.29x = 32,128.34 × 6,627.49
  4. Step 4: Simplify right side
    21,418.29x = 212,930,138.61
  5. Step 5: Solve for x
    x = 212,930,138.61/21,418.29
  6. Step 6: Final answer
    x = 9,941.51

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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.