Home / 20,740.83-28,624.40-12,245.76

Finding the Fourth Proportional to 20,740.83, 28,624.40 and 12,245.76

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Solution

The fourth proportional to 20,740.83, 28,624.40 and 12,245.76 is: 16,900.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740.83 : 28,624.40 = 12,245.76 : x
  2. Step 2: Convert to fraction form
    20,740.83/28,624.40 = 12,245.76/x
  3. Step 3: Cross multiply
    20,740.83x = 28,624.40 × 12,245.76
  4. Step 4: Simplify right side
    20,740.83x = 350,527,532.54
  5. Step 5: Solve for x
    x = 350,527,532.54/20,740.83
  6. Step 6: Final answer
    x = 16,900.36

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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.