Home / 31,688.10-43,729.58-17,540.95

Finding the Fourth Proportional to 31,688.10, 43,729.58 and 17,540.95

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Solution

The fourth proportional to 31,688.10, 43,729.58 and 17,540.95 is: 24,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.10 : 43,729.58 = 17,540.95 : x
  2. Step 2: Convert to fraction form
    31,688.10/43,729.58 = 17,540.95/x
  3. Step 3: Cross multiply
    31,688.10x = 43,729.58 × 17,540.95
  4. Step 4: Simplify right side
    31,688.10x = 767,058,157.65
  5. Step 5: Solve for x
    x = 767,058,157.65/31,688.10
  6. Step 6: Final answer
    x = 24,206.51

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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.