Home / 29,109.12-40,149.68-17,164.00

Finding the Fourth Proportional to 29,109.12, 40,149.68 and 17,164.00

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Solution

The fourth proportional to 29,109.12, 40,149.68 and 17,164.00 is: 23,673.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,109.12 : 40,149.68 = 17,164.00 : x
  2. Step 2: Convert to fraction form
    29,109.12/40,149.68 = 17,164.00/x
  3. Step 3: Cross multiply
    29,109.12x = 40,149.68 × 17,164.00
  4. Step 4: Simplify right side
    29,109.12x = 689,129,071.89
  5. Step 5: Solve for x
    x = 689,129,071.89/29,109.12
  6. Step 6: Final answer
    x = 23,673.99

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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.