Home / 28,174.78-38,882.41-15,599.53

Finding the Fourth Proportional to 28,174.78, 38,882.41 and 15,599.53

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Solution

The fourth proportional to 28,174.78, 38,882.41 and 15,599.53 is: 21,528.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.78 : 38,882.41 = 15,599.53 : x
  2. Step 2: Convert to fraction form
    28,174.78/38,882.41 = 15,599.53/x
  3. Step 3: Cross multiply
    28,174.78x = 38,882.41 × 15,599.53
  4. Step 4: Simplify right side
    28,174.78x = 606,547,418.62
  5. Step 5: Solve for x
    x = 606,547,418.62/28,174.78
  6. Step 6: Final answer
    x = 21,528.03

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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.