Home / 28,001.50-42,003.06-7,225

Finding the Fourth Proportional to 28,001.50, 42,003.06 and 7,225

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Solution

The fourth proportional to 28,001.50, 42,003.06 and 7,225 is: 10,837.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.50 : 42,003.06 = 7,225 : x
  2. Step 2: Convert to fraction form
    28,001.50/42,003.06 = 7,225/x
  3. Step 3: Cross multiply
    28,001.50x = 42,003.06 × 7,225
  4. Step 4: Simplify right side
    28,001.50x = 303,472,108.50
  5. Step 5: Solve for x
    x = 303,472,108.50/28,001.50
  6. Step 6: Final answer
    x = 10,837.71

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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.