Home / 21,327.54-29,434.29-11,899.38

Finding the Fourth Proportional to 21,327.54, 29,434.29 and 11,899.38

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Solution

The fourth proportional to 21,327.54, 29,434.29 and 11,899.38 is: 16,422.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.54 : 29,434.29 = 11,899.38 : x
  2. Step 2: Convert to fraction form
    21,327.54/29,434.29 = 11,899.38/x
  3. Step 3: Cross multiply
    21,327.54x = 29,434.29 × 11,899.38
  4. Step 4: Simplify right side
    21,327.54x = 350,249,801.74
  5. Step 5: Solve for x
    x = 350,249,801.74/21,327.54
  6. Step 6: Final answer
    x = 16,422.42

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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.