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Finding the Fourth Proportional to 37,911.69, 52,318.67 and 20,916.68

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Solution

The fourth proportional to 37,911.69, 52,318.67 and 20,916.68 is: 28,865.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,911.69 : 52,318.67 = 20,916.68 : x
  2. Step 2: Convert to fraction form
    37,911.69/52,318.67 = 20,916.68/x
  3. Step 3: Cross multiply
    37,911.69x = 52,318.67 × 20,916.68
  4. Step 4: Simplify right side
    37,911.69x = 1,094,332,512.24
  5. Step 5: Solve for x
    x = 1,094,332,512.24/37,911.69
  6. Step 6: Final answer
    x = 28,865.31

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1.5x scale

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.