Home / 25,767.87-35,631.23-20,453.46

Finding the Fourth Proportional to 25,767.87, 35,631.23 and 20,453.46

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Solution

The fourth proportional to 25,767.87, 35,631.23 and 20,453.46 is: 28,282.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,767.87 : 35,631.23 = 20,453.46 : x
  2. Step 2: Convert to fraction form
    25,767.87/35,631.23 = 20,453.46/x
  3. Step 3: Cross multiply
    25,767.87x = 35,631.23 × 20,453.46
  4. Step 4: Simplify right side
    25,767.87x = 728,781,810.53
  5. Step 5: Solve for x
    x = 728,781,810.53/25,767.87
  6. Step 6: Final answer
    x = 28,282.58

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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.