Home / 21,934.85-30,270.01-11,863.31

Finding the Fourth Proportional to 21,934.85, 30,270.01 and 11,863.31

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Solution

The fourth proportional to 21,934.85, 30,270.01 and 11,863.31 is: 16,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.85 : 30,270.01 = 11,863.31 : x
  2. Step 2: Convert to fraction form
    21,934.85/30,270.01 = 11,863.31/x
  3. Step 3: Cross multiply
    21,934.85x = 30,270.01 × 11,863.31
  4. Step 4: Simplify right side
    21,934.85x = 359,102,331.32
  5. Step 5: Solve for x
    x = 359,102,331.32/21,934.85
  6. Step 6: Final answer
    x = 16,371.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.