Home / 19,314.20-29,003.70-12,769.40

Finding the Fourth Proportional to 19,314.20, 29,003.70 and 12,769.40

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Solution

The fourth proportional to 19,314.20, 29,003.70 and 12,769.40 is: 19,175.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.20 : 29,003.70 = 12,769.40 : x
  2. Step 2: Convert to fraction form
    19,314.20/29,003.70 = 12,769.40/x
  3. Step 3: Cross multiply
    19,314.20x = 29,003.70 × 12,769.40
  4. Step 4: Simplify right side
    19,314.20x = 370,359,846.78
  5. Step 5: Solve for x
    x = 370,359,846.78/19,314.20
  6. Step 6: Final answer
    x = 19,175.52

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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.