Home / 21,609.56-29,834.96-17,640.12

Finding the Fourth Proportional to 21,609.56, 29,834.96 and 17,640.12

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Solution

The fourth proportional to 21,609.56, 29,834.96 and 17,640.12 is: 24,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.56 : 29,834.96 = 17,640.12 : x
  2. Step 2: Convert to fraction form
    21,609.56/29,834.96 = 17,640.12/x
  3. Step 3: Cross multiply
    21,609.56x = 29,834.96 × 17,640.12
  4. Step 4: Simplify right side
    21,609.56x = 526,292,274.60
  5. Step 5: Solve for x
    x = 526,292,274.60/21,609.56
  6. Step 6: Final answer
    x = 24,354.60

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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.