Home / 25,918.82-38,878.29-7,199.87

Finding the Fourth Proportional to 25,918.82, 38,878.29 and 7,199.87

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Solution

The fourth proportional to 25,918.82, 38,878.29 and 7,199.87 is: 10,799.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,918.82 : 38,878.29 = 7,199.87 : x
  2. Step 2: Convert to fraction form
    25,918.82/38,878.29 = 7,199.87/x
  3. Step 3: Cross multiply
    25,918.82x = 38,878.29 × 7,199.87
  4. Step 4: Simplify right side
    25,918.82x = 279,918,439.43
  5. Step 5: Solve for x
    x = 279,918,439.43/25,918.82
  6. Step 6: Final answer
    x = 10,799.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.