Home / 19,999.38-30,001.91-6,667.86

Finding the Fourth Proportional to 19,999.38, 30,001.91 and 6,667.86

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Solution

The fourth proportional to 19,999.38, 30,001.91 and 6,667.86 is: 10,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.38 : 30,001.91 = 6,667.86 : x
  2. Step 2: Convert to fraction form
    19,999.38/30,001.91 = 6,667.86/x
  3. Step 3: Cross multiply
    19,999.38x = 30,001.91 × 6,667.86
  4. Step 4: Simplify right side
    19,999.38x = 200,048,502.27
  5. Step 5: Solve for x
    x = 200,048,502.27/19,999.38
  6. Step 6: Final answer
    x = 10,002.74

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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.