Home / 20,707.61-31,067.46-6,667.32

Finding the Fourth Proportional to 20,707.61, 31,067.46 and 6,667.32

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Solution

The fourth proportional to 20,707.61, 31,067.46 and 6,667.32 is: 10,002.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.61 : 31,067.46 = 6,667.32 : x
  2. Step 2: Convert to fraction form
    20,707.61/31,067.46 = 6,667.32/x
  3. Step 3: Cross multiply
    20,707.61x = 31,067.46 × 6,667.32
  4. Step 4: Simplify right side
    20,707.61x = 207,136,697.41
  5. Step 5: Solve for x
    x = 207,136,697.41/20,707.61
  6. Step 6: Final answer
    x = 10,002.93

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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.