Home / 37,911.56-52,318.13-20,916

Finding the Fourth Proportional to 37,911.56, 52,318.13 and 20,916

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Solution

The fourth proportional to 37,911.56, 52,318.13 and 20,916 is: 28,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,911.56 : 52,318.13 = 20,916 : x
  2. Step 2: Convert to fraction form
    37,911.56/52,318.13 = 20,916/x
  3. Step 3: Cross multiply
    37,911.56x = 52,318.13 × 20,916
  4. Step 4: Simplify right side
    37,911.56x = 1,094,285,902.50
  5. Step 5: Solve for x
    x = 1,094,285,902.50/37,911.56
  6. Step 6: Final answer
    x = 28,864.18

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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.