Home / 28,972.68-39,982.41-16,397.16

Finding the Fourth Proportional to 28,972.68, 39,982.41 and 16,397.16

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Solution

The fourth proportional to 28,972.68, 39,982.41 and 16,397.16 is: 22,628.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.68 : 39,982.41 = 16,397.16 : x
  2. Step 2: Convert to fraction form
    28,972.68/39,982.41 = 16,397.16/x
  3. Step 3: Cross multiply
    28,972.68x = 39,982.41 × 16,397.16
  4. Step 4: Simplify right side
    28,972.68x = 655,597,973.96
  5. Step 5: Solve for x
    x = 655,597,973.96/28,972.68
  6. Step 6: Final answer
    x = 22,628.14

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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.