Home / 20,756.70-31,166.40-16,584.32

Finding the Fourth Proportional to 20,756.70, 31,166.40 and 16,584.32

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Solution

The fourth proportional to 20,756.70, 31,166.40 and 16,584.32 is: 24,901.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756.70 : 31,166.40 = 16,584.32 : x
  2. Step 2: Convert to fraction form
    20,756.70/31,166.40 = 16,584.32/x
  3. Step 3: Cross multiply
    20,756.70x = 31,166.40 × 16,584.32
  4. Step 4: Simplify right side
    20,756.70x = 516,873,550.85
  5. Step 5: Solve for x
    x = 516,873,550.85/20,756.70
  6. Step 6: Final answer
    x = 24,901.53

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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.