Home / 28,300.38-39,081.25-18,246.86

Finding the Fourth Proportional to 28,300.38, 39,081.25 and 18,246.86

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Solution

The fourth proportional to 28,300.38, 39,081.25 and 18,246.86 is: 25,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,300.38 : 39,081.25 = 18,246.86 : x
  2. Step 2: Convert to fraction form
    28,300.38/39,081.25 = 18,246.86/x
  3. Step 3: Cross multiply
    28,300.38x = 39,081.25 × 18,246.86
  4. Step 4: Simplify right side
    28,300.38x = 713,110,097.38
  5. Step 5: Solve for x
    x = 713,110,097.38/28,300.38
  6. Step 6: Final answer
    x = 25,197.90

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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.