Home / 19,326.40-28,998.24-12,414.40

Finding the Fourth Proportional to 19,326.40, 28,998.24 and 12,414.40

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Solution

The fourth proportional to 19,326.40, 28,998.24 and 12,414.40 is: 18,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.40 : 28,998.24 = 12,414.40 : x
  2. Step 2: Convert to fraction form
    19,326.40/28,998.24 = 12,414.40/x
  3. Step 3: Cross multiply
    19,326.40x = 28,998.24 × 12,414.40
  4. Step 4: Simplify right side
    19,326.40x = 359,995,750.66
  5. Step 5: Solve for x
    x = 359,995,750.66/19,326.40
  6. Step 6: Final answer
    x = 18,627.15

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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.