Home / 39,441.33-54,428.36-21,534.66

Finding the Fourth Proportional to 39,441.33, 54,428.36 and 21,534.66

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Solution

The fourth proportional to 39,441.33, 54,428.36 and 21,534.66 is: 29,717.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,441.33 : 54,428.36 = 21,534.66 : x
  2. Step 2: Convert to fraction form
    39,441.33/54,428.36 = 21,534.66/x
  3. Step 3: Cross multiply
    39,441.33x = 54,428.36 × 21,534.66
  4. Step 4: Simplify right side
    39,441.33x = 1,172,096,119.28
  5. Step 5: Solve for x
    x = 1,172,096,119.28/39,441.33
  6. Step 6: Final answer
    x = 29,717.46

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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.