Home / 25,568.78-38,358.40-10,777.70

Finding the Fourth Proportional to 25,568.78, 38,358.40 and 10,777.70

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Solution

The fourth proportional to 25,568.78, 38,358.40 and 10,777.70 is: 16,168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,568.78 : 38,358.40 = 10,777.70 : x
  2. Step 2: Convert to fraction form
    25,568.78/38,358.40 = 10,777.70/x
  3. Step 3: Cross multiply
    25,568.78x = 38,358.40 × 10,777.70
  4. Step 4: Simplify right side
    25,568.78x = 413,415,327.68
  5. Step 5: Solve for x
    x = 413,415,327.68/25,568.78
  6. Step 6: Final answer
    x = 16,168.75

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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.