Home / 28,288.72-39,049.32-18,853.84

Finding the Fourth Proportional to 28,288.72, 39,049.32 and 18,853.84

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Solution

The fourth proportional to 28,288.72, 39,049.32 and 18,853.84 is: 26,025.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.72 : 39,049.32 = 18,853.84 : x
  2. Step 2: Convert to fraction form
    28,288.72/39,049.32 = 18,853.84/x
  3. Step 3: Cross multiply
    28,288.72x = 39,049.32 × 18,853.84
  4. Step 4: Simplify right side
    28,288.72x = 736,229,631.39
  5. Step 5: Solve for x
    x = 736,229,631.39/28,288.72
  6. Step 6: Final answer
    x = 26,025.55

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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.