Home / 38,492.20-57,785.10-21,863.80

Finding the Fourth Proportional to 38,492.20, 57,785.10 and 21,863.80

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Solution

The fourth proportional to 38,492.20, 57,785.10 and 21,863.80 is: 32,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,492.20 : 57,785.10 = 21,863.80 : x
  2. Step 2: Convert to fraction form
    38,492.20/57,785.10 = 21,863.80/x
  3. Step 3: Cross multiply
    38,492.20x = 57,785.10 × 21,863.80
  4. Step 4: Simplify right side
    38,492.20x = 1,263,401,869.38
  5. Step 5: Solve for x
    x = 1,263,401,869.38/38,492.20
  6. Step 6: Final answer
    x = 32,822.28

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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.