Home / 21,600.87-32,401.29-12,360.39

Finding the Fourth Proportional to 21,600.87, 32,401.29 and 12,360.39

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Solution

The fourth proportional to 21,600.87, 32,401.29 and 12,360.39 is: 18,540.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,600.87 : 32,401.29 = 12,360.39 : x
  2. Step 2: Convert to fraction form
    21,600.87/32,401.29 = 12,360.39/x
  3. Step 3: Cross multiply
    21,600.87x = 32,401.29 × 12,360.39
  4. Step 4: Simplify right side
    21,600.87x = 400,492,580.90
  5. Step 5: Solve for x
    x = 400,492,580.90/21,600.87
  6. Step 6: Final answer
    x = 18,540.58

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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.