Home / 19,236.24-28,808.24-12,191.76

Finding the Fourth Proportional to 19,236.24, 28,808.24 and 12,191.76

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Solution

The fourth proportional to 19,236.24, 28,808.24 and 12,191.76 is: 18,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,236.24 : 28,808.24 = 12,191.76 : x
  2. Step 2: Convert to fraction form
    19,236.24/28,808.24 = 12,191.76/x
  3. Step 3: Cross multiply
    19,236.24x = 28,808.24 × 12,191.76
  4. Step 4: Simplify right side
    19,236.24x = 351,223,148.10
  5. Step 5: Solve for x
    x = 351,223,148.10/19,236.24
  6. Step 6: Final answer
    x = 18,258.41

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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.