Home / 21,471.67-29,625.28-12,394.81

Finding the Fourth Proportional to 21,471.67, 29,625.28 and 12,394.81

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Solution

The fourth proportional to 21,471.67, 29,625.28 and 12,394.81 is: 17,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,471.67 : 29,625.28 = 12,394.81 : x
  2. Step 2: Convert to fraction form
    21,471.67/29,625.28 = 12,394.81/x
  3. Step 3: Cross multiply
    21,471.67x = 29,625.28 × 12,394.81
  4. Step 4: Simplify right side
    21,471.67x = 367,199,716.80
  5. Step 5: Solve for x
    x = 367,199,716.80/21,471.67
  6. Step 6: Final answer
    x = 17,101.59

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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.