Home / 28,175.94-38,884.01-15,600.69

Finding the Fourth Proportional to 28,175.94, 38,884.01 and 15,600.69

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Solution

The fourth proportional to 28,175.94, 38,884.01 and 15,600.69 is: 21,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.94 : 38,884.01 = 15,600.69 : x
  2. Step 2: Convert to fraction form
    28,175.94/38,884.01 = 15,600.69/x
  3. Step 3: Cross multiply
    28,175.94x = 38,884.01 × 15,600.69
  4. Step 4: Simplify right side
    28,175.94x = 606,617,385.97
  5. Step 5: Solve for x
    x = 606,617,385.97/28,175.94
  6. Step 6: Final answer
    x = 21,529.62

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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.