Home / 20,172.57-30,236.43-15,226.17

Finding the Fourth Proportional to 20,172.57, 30,236.43 and 15,226.17

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Solution

The fourth proportional to 20,172.57, 30,236.43 and 15,226.17 is: 22,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.57 : 30,236.43 = 15,226.17 : x
  2. Step 2: Convert to fraction form
    20,172.57/30,236.43 = 15,226.17/x
  3. Step 3: Cross multiply
    20,172.57x = 30,236.43 × 15,226.17
  4. Step 4: Simplify right side
    20,172.57x = 460,385,023.37
  5. Step 5: Solve for x
    x = 460,385,023.37/20,172.57
  6. Step 6: Final answer
    x = 22,822.33

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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.