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Finding the Fourth Proportional to 40,247.70, 60,400.35 and 16,890.90

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Solution

The fourth proportional to 40,247.70, 60,400.35 and 16,890.90 is: 25,348.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,247.70 : 60,400.35 = 16,890.90 : x
  2. Step 2: Convert to fraction form
    40,247.70/60,400.35 = 16,890.90/x
  3. Step 3: Cross multiply
    40,247.70x = 60,400.35 × 16,890.90
  4. Step 4: Simplify right side
    40,247.70x = 1,020,216,271.82
  5. Step 5: Solve for x
    x = 1,020,216,271.82/40,247.70
  6. Step 6: Final answer
    x = 25,348.44

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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.