Home / 20,958.73-31,434.37-6,918.95

Finding the Fourth Proportional to 20,958.73, 31,434.37 and 6,918.95

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Solution

The fourth proportional to 20,958.73, 31,434.37 and 6,918.95 is: 10,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.73 : 31,434.37 = 6,918.95 : x
  2. Step 2: Convert to fraction form
    20,958.73/31,434.37 = 6,918.95/x
  3. Step 3: Cross multiply
    20,958.73x = 31,434.37 × 6,918.95
  4. Step 4: Simplify right side
    20,958.73x = 217,492,895.60
  5. Step 5: Solve for x
    x = 217,492,895.60/20,958.73
  6. Step 6: Final answer
    x = 10,377.20

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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.