Home / 23,990.46-33,106.89-13,380.78

Finding the Fourth Proportional to 23,990.46, 33,106.89 and 13,380.78

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Solution

The fourth proportional to 23,990.46, 33,106.89 and 13,380.78 is: 18,465.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,990.46 : 33,106.89 = 13,380.78 : x
  2. Step 2: Convert to fraction form
    23,990.46/33,106.89 = 13,380.78/x
  3. Step 3: Cross multiply
    23,990.46x = 33,106.89 × 13,380.78
  4. Step 4: Simplify right side
    23,990.46x = 442,996,011.57
  5. Step 5: Solve for x
    x = 442,996,011.57/23,990.46
  6. Step 6: Final answer
    x = 18,465.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.