Home / 31,427.22-43,370.28-17,280.84

Finding the Fourth Proportional to 31,427.22, 43,370.28 and 17,280.84

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Solution

The fourth proportional to 31,427.22, 43,370.28 and 17,280.84 is: 23,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.22 : 43,370.28 = 17,280.84 : x
  2. Step 2: Convert to fraction form
    31,427.22/43,370.28 = 17,280.84/x
  3. Step 3: Cross multiply
    31,427.22x = 43,370.28 × 17,280.84
  4. Step 4: Simplify right side
    31,427.22x = 749,474,869.44
  5. Step 5: Solve for x
    x = 749,474,869.44/31,427.22
  6. Step 6: Final answer
    x = 23,847.95

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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.