Home / 29,488.20-40,624.50-20,520.30

Finding the Fourth Proportional to 29,488.20, 40,624.50 and 20,520.30

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Solution

The fourth proportional to 29,488.20, 40,624.50 and 20,520.30 is: 28,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,488.20 : 40,624.50 = 20,520.30 : x
  2. Step 2: Convert to fraction form
    29,488.20/40,624.50 = 20,520.30/x
  3. Step 3: Cross multiply
    29,488.20x = 40,624.50 × 20,520.30
  4. Step 4: Simplify right side
    29,488.20x = 833,626,927.35
  5. Step 5: Solve for x
    x = 833,626,927.35/29,488.20
  6. Step 6: Final answer
    x = 28,269.85

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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.