Home / 28,519.64-39,357.22-15,944.40

Finding the Fourth Proportional to 28,519.64, 39,357.22 and 15,944.40

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Solution

The fourth proportional to 28,519.64, 39,357.22 and 15,944.40 is: 22,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.64 : 39,357.22 = 15,944.40 : x
  2. Step 2: Convert to fraction form
    28,519.64/39,357.22 = 15,944.40/x
  3. Step 3: Cross multiply
    28,519.64x = 39,357.22 × 15,944.40
  4. Step 4: Simplify right side
    28,519.64x = 627,527,258.57
  5. Step 5: Solve for x
    x = 627,527,258.57/28,519.64
  6. Step 6: Final answer
    x = 22,003.34

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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.