Home / 20,555.04-30,835.77-8,708.83

Finding the Fourth Proportional to 20,555.04, 30,835.77 and 8,708.83

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Solution

The fourth proportional to 20,555.04, 30,835.77 and 8,708.83 is: 13,064.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.04 : 30,835.77 = 8,708.83 : x
  2. Step 2: Convert to fraction form
    20,555.04/30,835.77 = 8,708.83/x
  3. Step 3: Cross multiply
    20,555.04x = 30,835.77 × 8,708.83
  4. Step 4: Simplify right side
    20,555.04x = 268,543,478.85
  5. Step 5: Solve for x
    x = 268,543,478.85/20,555.04
  6. Step 6: Final answer
    x = 13,064.61

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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.