Home / 20,172.32-30,236.06-15,225.92

Finding the Fourth Proportional to 20,172.32, 30,236.06 and 15,225.92

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Solution

The fourth proportional to 20,172.32, 30,236.06 and 15,225.92 is: 22,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.32 : 30,236.06 = 15,225.92 : x
  2. Step 2: Convert to fraction form
    20,172.32/30,236.06 = 15,225.92/x
  3. Step 3: Cross multiply
    20,172.32x = 30,236.06 × 15,225.92
  4. Step 4: Simplify right side
    20,172.32x = 460,371,830.68
  5. Step 5: Solve for x
    x = 460,371,830.68/20,172.32
  6. Step 6: Final answer
    x = 22,821.96

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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.