Home / 28,223.99-38,947.43-16,125.78

Finding the Fourth Proportional to 28,223.99, 38,947.43 and 16,125.78

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Solution

The fourth proportional to 28,223.99, 38,947.43 and 16,125.78 is: 22,252.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.99 : 38,947.43 = 16,125.78 : x
  2. Step 2: Convert to fraction form
    28,223.99/38,947.43 = 16,125.78/x
  3. Step 3: Cross multiply
    28,223.99x = 38,947.43 × 16,125.78
  4. Step 4: Simplify right side
    28,223.99x = 628,057,874.11
  5. Step 5: Solve for x
    x = 628,057,874.11/28,223.99
  6. Step 6: Final answer
    x = 22,252.62

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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.