Home / 21,758.49-30,023.46-12,327.66

Finding the Fourth Proportional to 21,758.49, 30,023.46 and 12,327.66

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Solution

The fourth proportional to 21,758.49, 30,023.46 and 12,327.66 is: 17,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,758.49 : 30,023.46 = 12,327.66 : x
  2. Step 2: Convert to fraction form
    21,758.49/30,023.46 = 12,327.66/x
  3. Step 3: Cross multiply
    21,758.49x = 30,023.46 × 12,327.66
  4. Step 4: Simplify right side
    21,758.49x = 370,119,006.90
  5. Step 5: Solve for x
    x = 370,119,006.90/21,758.49
  6. Step 6: Final answer
    x = 17,010.33

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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.