Home / 28,682.75-39,582.16-15,937.11

Finding the Fourth Proportional to 28,682.75, 39,582.16 and 15,937.11

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Solution

The fourth proportional to 28,682.75, 39,582.16 and 15,937.11 is: 21,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.75 : 39,582.16 = 15,937.11 : x
  2. Step 2: Convert to fraction form
    28,682.75/39,582.16 = 15,937.11/x
  3. Step 3: Cross multiply
    28,682.75x = 39,582.16 × 15,937.11
  4. Step 4: Simplify right side
    28,682.75x = 630,825,198.11
  5. Step 5: Solve for x
    x = 630,825,198.11/28,682.75
  6. Step 6: Final answer
    x = 21,993.19

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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.