Home / 22,157.28-33,251.04-12,290.40

Finding the Fourth Proportional to 22,157.28, 33,251.04 and 12,290.40

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Solution

The fourth proportional to 22,157.28, 33,251.04 and 12,290.40 is: 18,443.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,157.28 : 33,251.04 = 12,290.40 : x
  2. Step 2: Convert to fraction form
    22,157.28/33,251.04 = 12,290.40/x
  3. Step 3: Cross multiply
    22,157.28x = 33,251.04 × 12,290.40
  4. Step 4: Simplify right side
    22,157.28x = 408,668,582.02
  5. Step 5: Solve for x
    x = 408,668,582.02/22,157.28
  6. Step 6: Final answer
    x = 18,443.99

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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.