Home / 28,175.71-38,882.48-15,600.46

Finding the Fourth Proportional to 28,175.71, 38,882.48 and 15,600.46

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Solution

The fourth proportional to 28,175.71, 38,882.48 and 15,600.46 is: 21,528.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.71 : 38,882.48 = 15,600.46 : x
  2. Step 2: Convert to fraction form
    28,175.71/38,882.48 = 15,600.46/x
  3. Step 3: Cross multiply
    28,175.71x = 38,882.48 × 15,600.46
  4. Step 4: Simplify right side
    28,175.71x = 606,584,573.94
  5. Step 5: Solve for x
    x = 606,584,573.94/28,175.71
  6. Step 6: Final answer
    x = 21,528.63

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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.