Home / 20,710.61-31,065.99-8,229.83

Finding the Fourth Proportional to 20,710.61, 31,065.99 and 8,229.83

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Solution

The fourth proportional to 20,710.61, 31,065.99 and 8,229.83 is: 12,344.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.61 : 31,065.99 = 8,229.83 : x
  2. Step 2: Convert to fraction form
    20,710.61/31,065.99 = 8,229.83/x
  3. Step 3: Cross multiply
    20,710.61x = 31,065.99 × 8,229.83
  4. Step 4: Simplify right side
    20,710.61x = 255,667,816.48
  5. Step 5: Solve for x
    x = 255,667,816.48/20,710.61
  6. Step 6: Final answer
    x = 12,344.77

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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.