Home / 31,048.20-42,844.32-16,900.74

Finding the Fourth Proportional to 31,048.20, 42,844.32 and 16,900.74

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Solution

The fourth proportional to 31,048.20, 42,844.32 and 16,900.74 is: 23,321.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,048.20 : 42,844.32 = 16,900.74 : x
  2. Step 2: Convert to fraction form
    31,048.20/42,844.32 = 16,900.74/x
  3. Step 3: Cross multiply
    31,048.20x = 42,844.32 × 16,900.74
  4. Step 4: Simplify right side
    31,048.20x = 724,100,712.80
  5. Step 5: Solve for x
    x = 724,100,712.80/31,048.20
  6. Step 6: Final answer
    x = 23,321.83

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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.