Home / 28,166.46-38,869.38-15,591.48

Finding the Fourth Proportional to 28,166.46, 38,869.38 and 15,591.48

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Solution

The fourth proportional to 28,166.46, 38,869.38 and 15,591.48 is: 21,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.46 : 38,869.38 = 15,591.48 : x
  2. Step 2: Convert to fraction form
    28,166.46/38,869.38 = 15,591.48/x
  3. Step 3: Cross multiply
    28,166.46x = 38,869.38 × 15,591.48
  4. Step 4: Simplify right side
    28,166.46x = 606,031,160.88
  5. Step 5: Solve for x
    x = 606,031,160.88/28,166.46
  6. Step 6: Final answer
    x = 21,516.06

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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.