Home / 28,168.64-38,785.92-25,019.36

Finding the Fourth Proportional to 28,168.64, 38,785.92 and 25,019.36

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Solution

The fourth proportional to 28,168.64, 38,785.92 and 25,019.36 is: 34,449.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.64 : 38,785.92 = 25,019.36 : x
  2. Step 2: Convert to fraction form
    28,168.64/38,785.92 = 25,019.36/x
  3. Step 3: Cross multiply
    28,168.64x = 38,785.92 × 25,019.36
  4. Step 4: Simplify right side
    28,168.64x = 970,398,895.41
  5. Step 5: Solve for x
    x = 970,398,895.41/28,168.64
  6. Step 6: Final answer
    x = 34,449.62

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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.