Home / 28,547.38-39,396.45-15,972.22

Finding the Fourth Proportional to 28,547.38, 39,396.45 and 15,972.22

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Solution

The fourth proportional to 28,547.38, 39,396.45 and 15,972.22 is: 22,042.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.38 : 39,396.45 = 15,972.22 : x
  2. Step 2: Convert to fraction form
    28,547.38/39,396.45 = 15,972.22/x
  3. Step 3: Cross multiply
    28,547.38x = 39,396.45 × 15,972.22
  4. Step 4: Simplify right side
    28,547.38x = 629,248,766.62
  5. Step 5: Solve for x
    x = 629,248,766.62/28,547.38
  6. Step 6: Final answer
    x = 22,042.26

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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.