Home / 19,139.39-28,709.08-5,992.79

Finding the Fourth Proportional to 19,139.39, 28,709.08 and 5,992.79

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Solution

The fourth proportional to 19,139.39, 28,709.08 and 5,992.79 is: 8,989.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.39 : 28,709.08 = 5,992.79 : x
  2. Step 2: Convert to fraction form
    19,139.39/28,709.08 = 5,992.79/x
  3. Step 3: Cross multiply
    19,139.39x = 28,709.08 × 5,992.79
  4. Step 4: Simplify right side
    19,139.39x = 172,047,329.01
  5. Step 5: Solve for x
    x = 172,047,329.01/19,139.39
  6. Step 6: Final answer
    x = 8,989.18

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Similar ratio
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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.