Home / 29,045.38-40,105.20-22,320.40

Finding the Fourth Proportional to 29,045.38, 40,105.20 and 22,320.40

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Solution

The fourth proportional to 29,045.38, 40,105.20 and 22,320.40 is: 30,819.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,045.38 : 40,105.20 = 22,320.40 : x
  2. Step 2: Convert to fraction form
    29,045.38/40,105.20 = 22,320.40/x
  3. Step 3: Cross multiply
    29,045.38x = 40,105.20 × 22,320.40
  4. Step 4: Simplify right side
    29,045.38x = 895,164,106.08
  5. Step 5: Solve for x
    x = 895,164,106.08/29,045.38
  6. Step 6: Final answer
    x = 30,819.50

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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.