Home / 29,145.14-40,221.30-18,534.54

Finding the Fourth Proportional to 29,145.14, 40,221.30 and 18,534.54

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Solution

The fourth proportional to 29,145.14, 40,221.30 and 18,534.54 is: 25,578.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,145.14 : 40,221.30 = 18,534.54 : x
  2. Step 2: Convert to fraction form
    29,145.14/40,221.30 = 18,534.54/x
  3. Step 3: Cross multiply
    29,145.14x = 40,221.30 × 18,534.54
  4. Step 4: Simplify right side
    29,145.14x = 745,483,293.70
  5. Step 5: Solve for x
    x = 745,483,293.70/29,145.14
  6. Step 6: Final answer
    x = 25,578.31

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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.