Home / 31,022.20-42,808.44-16,874.74

Finding the Fourth Proportional to 31,022.20, 42,808.44 and 16,874.74

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Solution

The fourth proportional to 31,022.20, 42,808.44 and 16,874.74 is: 23,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,022.20 : 42,808.44 = 16,874.74 : x
  2. Step 2: Convert to fraction form
    31,022.20/42,808.44 = 16,874.74/x
  3. Step 3: Cross multiply
    31,022.20x = 42,808.44 × 16,874.74
  4. Step 4: Simplify right side
    31,022.20x = 722,381,294.81
  5. Step 5: Solve for x
    x = 722,381,294.81/31,022.20
  6. Step 6: Final answer
    x = 23,285.95

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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.