Home / 28,175.77-38,882.60-15,600.25

Finding the Fourth Proportional to 28,175.77, 38,882.60 and 15,600.25

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Solution

The fourth proportional to 28,175.77, 38,882.60 and 15,600.25 is: 21,528.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.77 : 38,882.60 = 15,600.25 : x
  2. Step 2: Convert to fraction form
    28,175.77/38,882.60 = 15,600.25/x
  3. Step 3: Cross multiply
    28,175.77x = 38,882.60 × 15,600.25
  4. Step 4: Simplify right side
    28,175.77x = 606,578,280.65
  5. Step 5: Solve for x
    x = 606,578,280.65/28,175.77
  6. Step 6: Final answer
    x = 21,528.37

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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.