Home / 19,994.40-29,947.86-12,949.92

Finding the Fourth Proportional to 19,994.40, 29,947.86 and 12,949.92

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Solution

The fourth proportional to 19,994.40, 29,947.86 and 12,949.92 is: 19,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.40 : 29,947.86 = 12,949.92 : x
  2. Step 2: Convert to fraction form
    19,994.40/29,947.86 = 12,949.92/x
  3. Step 3: Cross multiply
    19,994.40x = 29,947.86 × 12,949.92
  4. Step 4: Simplify right side
    19,994.40x = 387,822,391.17
  5. Step 5: Solve for x
    x = 387,822,391.17/19,994.40
  6. Step 6: Final answer
    x = 19,396.55

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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.