Home / 29,578.23-40,775.56-18,240.11

Finding the Fourth Proportional to 29,578.23, 40,775.56 and 18,240.11

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Solution

The fourth proportional to 29,578.23, 40,775.56 and 18,240.11 is: 25,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,578.23 : 40,775.56 = 18,240.11 : x
  2. Step 2: Convert to fraction form
    29,578.23/40,775.56 = 18,240.11/x
  3. Step 3: Cross multiply
    29,578.23x = 40,775.56 × 18,240.11
  4. Step 4: Simplify right side
    29,578.23x = 743,750,608.51
  5. Step 5: Solve for x
    x = 743,750,608.51/29,578.23
  6. Step 6: Final answer
    x = 25,145.20

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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.