Home / 31,291.65-43,181.91-17,144.19

Finding the Fourth Proportional to 31,291.65, 43,181.91 and 17,144.19

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Solution

The fourth proportional to 31,291.65, 43,181.91 and 17,144.19 is: 23,658.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,291.65 : 43,181.91 = 17,144.19 : x
  2. Step 2: Convert to fraction form
    31,291.65/43,181.91 = 17,144.19/x
  3. Step 3: Cross multiply
    31,291.65x = 43,181.91 × 17,144.19
  4. Step 4: Simplify right side
    31,291.65x = 740,318,869.60
  5. Step 5: Solve for x
    x = 740,318,869.60/31,291.65
  6. Step 6: Final answer
    x = 23,658.67

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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.