Home / 28,584.15-42,876.25-11,935.11

Finding the Fourth Proportional to 28,584.15, 42,876.25 and 11,935.11

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Solution

The fourth proportional to 28,584.15, 42,876.25 and 11,935.11 is: 17,902.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,584.15 : 42,876.25 = 11,935.11 : x
  2. Step 2: Convert to fraction form
    28,584.15/42,876.25 = 11,935.11/x
  3. Step 3: Cross multiply
    28,584.15x = 42,876.25 × 11,935.11
  4. Step 4: Simplify right side
    28,584.15x = 511,732,700.46
  5. Step 5: Solve for x
    x = 511,732,700.46/28,584.15
  6. Step 6: Final answer
    x = 17,902.67

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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.