Home / 31,317.21-43,217.55-17,170.04

Finding the Fourth Proportional to 31,317.21, 43,217.55 and 17,170.04

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Solution

The fourth proportional to 31,317.21, 43,217.55 and 17,170.04 is: 23,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,317.21 : 43,217.55 = 17,170.04 : x
  2. Step 2: Convert to fraction form
    31,317.21/43,217.55 = 17,170.04/x
  3. Step 3: Cross multiply
    31,317.21x = 43,217.55 × 17,170.04
  4. Step 4: Simplify right side
    31,317.21x = 742,046,846.11
  5. Step 5: Solve for x
    x = 742,046,846.11/31,317.21
  6. Step 6: Final answer
    x = 23,694.54

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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.