Home / 25,034.87-34,561.69-19,920.33

Finding the Fourth Proportional to 25,034.87, 34,561.69 and 19,920.33

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Solution

The fourth proportional to 25,034.87, 34,561.69 and 19,920.33 is: 27,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,034.87 : 34,561.69 = 19,920.33 : x
  2. Step 2: Convert to fraction form
    25,034.87/34,561.69 = 19,920.33/x
  3. Step 3: Cross multiply
    25,034.87x = 34,561.69 × 19,920.33
  4. Step 4: Simplify right side
    25,034.87x = 688,480,220.36
  5. Step 5: Solve for x
    x = 688,480,220.36/25,034.87
  6. Step 6: Final answer
    x = 27,500.85

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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.