Home / 19,728.32-29,548.60-18,191.76

Finding the Fourth Proportional to 19,728.32, 29,548.60 and 18,191.76

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Solution

The fourth proportional to 19,728.32, 29,548.60 and 18,191.76 is: 27,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.32 : 29,548.60 = 18,191.76 : x
  2. Step 2: Convert to fraction form
    19,728.32/29,548.60 = 18,191.76/x
  3. Step 3: Cross multiply
    19,728.32x = 29,548.60 × 18,191.76
  4. Step 4: Simplify right side
    19,728.32x = 537,541,039.54
  5. Step 5: Solve for x
    x = 537,541,039.54/19,728.32
  6. Step 6: Final answer
    x = 27,247.18

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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.