Home / 39,301.28-54,234.08-21,396.37

Finding the Fourth Proportional to 39,301.28, 54,234.08 and 21,396.37

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Solution

The fourth proportional to 39,301.28, 54,234.08 and 21,396.37 is: 29,526.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,301.28 : 54,234.08 = 21,396.37 : x
  2. Step 2: Convert to fraction form
    39,301.28/54,234.08 = 21,396.37/x
  3. Step 3: Cross multiply
    39,301.28x = 54,234.08 × 21,396.37
  4. Step 4: Simplify right side
    39,301.28x = 1,160,412,064.14
  5. Step 5: Solve for x
    x = 1,160,412,064.14/39,301.28
  6. Step 6: Final answer
    x = 29,526.06

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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.