Home / 20,440.96-30,587.42-16,898.02

Finding the Fourth Proportional to 20,440.96, 30,587.42 and 16,898.02

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Solution

The fourth proportional to 20,440.96, 30,587.42 and 16,898.02 is: 25,285.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440.96 : 30,587.42 = 16,898.02 : x
  2. Step 2: Convert to fraction form
    20,440.96/30,587.42 = 16,898.02/x
  3. Step 3: Cross multiply
    20,440.96x = 30,587.42 × 16,898.02
  4. Step 4: Simplify right side
    20,440.96x = 516,866,800.68
  5. Step 5: Solve for x
    x = 516,866,800.68/20,440.96
  6. Step 6: Final answer
    x = 25,285.84

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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.