Home / 20,944.74-31,408.80-9,249.75

Finding the Fourth Proportional to 20,944.74, 31,408.80 and 9,249.75

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Solution

The fourth proportional to 20,944.74, 31,408.80 and 9,249.75 is: 13,870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.74 : 31,408.80 = 9,249.75 : x
  2. Step 2: Convert to fraction form
    20,944.74/31,408.80 = 9,249.75/x
  3. Step 3: Cross multiply
    20,944.74x = 31,408.80 × 9,249.75
  4. Step 4: Simplify right side
    20,944.74x = 290,523,547.80
  5. Step 5: Solve for x
    x = 290,523,547.80/20,944.74
  6. Step 6: Final answer
    x = 13,870.96

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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.