Home / 21,399.41-29,532.06-11,839.14

Finding the Fourth Proportional to 21,399.41, 29,532.06 and 11,839.14

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Solution

The fourth proportional to 21,399.41, 29,532.06 and 11,839.14 is: 16,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399.41 : 29,532.06 = 11,839.14 : x
  2. Step 2: Convert to fraction form
    21,399.41/29,532.06 = 11,839.14/x
  3. Step 3: Cross multiply
    21,399.41x = 29,532.06 × 11,839.14
  4. Step 4: Simplify right side
    21,399.41x = 349,634,045.17
  5. Step 5: Solve for x
    x = 349,634,045.17/21,399.41
  6. Step 6: Final answer
    x = 16,338.49

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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.