Home / 20,348.10-30,522.15-7,201.80

Finding the Fourth Proportional to 20,348.10, 30,522.15 and 7,201.80

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Solution

The fourth proportional to 20,348.10, 30,522.15 and 7,201.80 is: 10,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.10 : 30,522.15 = 7,201.80 : x
  2. Step 2: Convert to fraction form
    20,348.10/30,522.15 = 7,201.80/x
  3. Step 3: Cross multiply
    20,348.10x = 30,522.15 × 7,201.80
  4. Step 4: Simplify right side
    20,348.10x = 219,814,419.87
  5. Step 5: Solve for x
    x = 219,814,419.87/20,348.10
  6. Step 6: Final answer
    x = 10,802.70

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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.