Home / 20,667.96-31,003.98-6,624.46

Finding the Fourth Proportional to 20,667.96, 31,003.98 and 6,624.46

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Solution

The fourth proportional to 20,667.96, 31,003.98 and 6,624.46 is: 9,937.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.96 : 31,003.98 = 6,624.46 : x
  2. Step 2: Convert to fraction form
    20,667.96/31,003.98 = 6,624.46/x
  3. Step 3: Cross multiply
    20,667.96x = 31,003.98 × 6,624.46
  4. Step 4: Simplify right side
    20,667.96x = 205,384,625.35
  5. Step 5: Solve for x
    x = 205,384,625.35/20,667.96
  6. Step 6: Final answer
    x = 9,937.34

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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.