Home / 30,882.12-42,578.40-25,211.10

Finding the Fourth Proportional to 30,882.12, 42,578.40 and 25,211.10

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Solution

The fourth proportional to 30,882.12, 42,578.40 and 25,211.10 is: 34,759.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,882.12 : 42,578.40 = 25,211.10 : x
  2. Step 2: Convert to fraction form
    30,882.12/42,578.40 = 25,211.10/x
  3. Step 3: Cross multiply
    30,882.12x = 42,578.40 × 25,211.10
  4. Step 4: Simplify right side
    30,882.12x = 1,073,448,300.24
  5. Step 5: Solve for x
    x = 1,073,448,300.24/30,882.12
  6. Step 6: Final answer
    x = 34,759.54

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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.