Home / 29,080.76-40,109.74-19,639.48

Finding the Fourth Proportional to 29,080.76, 40,109.74 and 19,639.48

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Solution

The fourth proportional to 29,080.76, 40,109.74 and 19,639.48 is: 27,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,080.76 : 40,109.74 = 19,639.48 : x
  2. Step 2: Convert to fraction form
    29,080.76/40,109.74 = 19,639.48/x
  3. Step 3: Cross multiply
    29,080.76x = 40,109.74 × 19,639.48
  4. Step 4: Simplify right side
    29,080.76x = 787,734,436.54
  5. Step 5: Solve for x
    x = 787,734,436.54/29,080.76
  6. Step 6: Final answer
    x = 27,087.82

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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.