Home / 28,366.88-42,499.56-15,872.36

Finding the Fourth Proportional to 28,366.88, 42,499.56 and 15,872.36

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Solution

The fourth proportional to 28,366.88, 42,499.56 and 15,872.36 is: 23,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.88 : 42,499.56 = 15,872.36 : x
  2. Step 2: Convert to fraction form
    28,366.88/42,499.56 = 15,872.36/x
  3. Step 3: Cross multiply
    28,366.88x = 42,499.56 × 15,872.36
  4. Step 4: Simplify right side
    28,366.88x = 674,568,316.16
  5. Step 5: Solve for x
    x = 674,568,316.16/28,366.88
  6. Step 6: Final answer
    x = 23,780.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.