Home / 28,184.99-38,876.56-18,126.15

Finding the Fourth Proportional to 28,184.99, 38,876.56 and 18,126.15

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Solution

The fourth proportional to 28,184.99, 38,876.56 and 18,126.15 is: 25,002.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184.99 : 38,876.56 = 18,126.15 : x
  2. Step 2: Convert to fraction form
    28,184.99/38,876.56 = 18,126.15/x
  3. Step 3: Cross multiply
    28,184.99x = 38,876.56 × 18,126.15
  4. Step 4: Simplify right side
    28,184.99x = 704,682,166.94
  5. Step 5: Solve for x
    x = 704,682,166.94/28,184.99
  6. Step 6: Final answer
    x = 25,002.04

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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.