Home / 22,139.80-33,209.70-6,557.40

Finding the Fourth Proportional to 22,139.80, 33,209.70 and 6,557.40

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Solution

The fourth proportional to 22,139.80, 33,209.70 and 6,557.40 is: 9,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.80 : 33,209.70 = 6,557.40 : x
  2. Step 2: Convert to fraction form
    22,139.80/33,209.70 = 6,557.40/x
  3. Step 3: Cross multiply
    22,139.80x = 33,209.70 × 6,557.40
  4. Step 4: Simplify right side
    22,139.80x = 217,769,286.78
  5. Step 5: Solve for x
    x = 217,769,286.78/22,139.80
  6. Step 6: Final answer
    x = 9,836.10

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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.