Home / 37,771.39-52,121.32-21,856.86

Finding the Fourth Proportional to 37,771.39, 52,121.32 and 21,856.86

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Solution

The fourth proportional to 37,771.39, 52,121.32 and 21,856.86 is: 30,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,771.39 : 52,121.32 = 21,856.86 : x
  2. Step 2: Convert to fraction form
    37,771.39/52,121.32 = 21,856.86/x
  3. Step 3: Cross multiply
    37,771.39x = 52,121.32 × 21,856.86
  4. Step 4: Simplify right side
    37,771.39x = 1,139,208,394.26
  5. Step 5: Solve for x
    x = 1,139,208,394.26/37,771.39
  6. Step 6: Final answer
    x = 30,160.62

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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.