Home / 20,909.67-31,366.26-5,327.25

Finding the Fourth Proportional to 20,909.67, 31,366.26 and 5,327.25

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Solution

The fourth proportional to 20,909.67, 31,366.26 and 5,327.25 is: 7,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,909.67 : 31,366.26 = 5,327.25 : x
  2. Step 2: Convert to fraction form
    20,909.67/31,366.26 = 5,327.25/x
  3. Step 3: Cross multiply
    20,909.67x = 31,366.26 × 5,327.25
  4. Step 4: Simplify right side
    20,909.67x = 167,095,908.59
  5. Step 5: Solve for x
    x = 167,095,908.59/20,909.67
  6. Step 6: Final answer
    x = 7,991.32

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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.