Home / 28,866.88-43,270.62-15,715.72

Finding the Fourth Proportional to 28,866.88, 43,270.62 and 15,715.72

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Solution

The fourth proportional to 28,866.88, 43,270.62 and 15,715.72 is: 23,557.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,866.88 : 43,270.62 = 15,715.72 : x
  2. Step 2: Convert to fraction form
    28,866.88/43,270.62 = 15,715.72/x
  3. Step 3: Cross multiply
    28,866.88x = 43,270.62 × 15,715.72
  4. Step 4: Simplify right side
    28,866.88x = 680,028,948.15
  5. Step 5: Solve for x
    x = 680,028,948.15/28,866.88
  6. Step 6: Final answer
    x = 23,557.41

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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.