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Finding the Fourth Proportional to 22,703.80, 34,113.30 and 20,169.40

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Solution

The fourth proportional to 22,703.80, 34,113.30 and 20,169.40 is: 30,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,703.80 : 34,113.30 = 20,169.40 : x
  2. Step 2: Convert to fraction form
    22,703.80/34,113.30 = 20,169.40/x
  3. Step 3: Cross multiply
    22,703.80x = 34,113.30 × 20,169.40
  4. Step 4: Simplify right side
    22,703.80x = 688,044,793.02
  5. Step 5: Solve for x
    x = 688,044,793.02/22,703.80
  6. Step 6: Final answer
    x = 30,305.27

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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.