Home / 39,343.08-54,294.06-21,438.08

Finding the Fourth Proportional to 39,343.08, 54,294.06 and 21,438.08

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Solution

The fourth proportional to 39,343.08, 54,294.06 and 21,438.08 is: 29,584.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,343.08 : 54,294.06 = 21,438.08 : x
  2. Step 2: Convert to fraction form
    39,343.08/54,294.06 = 21,438.08/x
  3. Step 3: Cross multiply
    39,343.08x = 54,294.06 × 21,438.08
  4. Step 4: Simplify right side
    39,343.08x = 1,163,960,401.80
  5. Step 5: Solve for x
    x = 1,163,960,401.80/39,343.08
  6. Step 6: Final answer
    x = 29,584.88

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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.