Home / 37,806.89-52,174.76-20,812.39

Finding the Fourth Proportional to 37,806.89, 52,174.76 and 20,812.39

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Solution

The fourth proportional to 37,806.89, 52,174.76 and 20,812.39 is: 28,721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,806.89 : 52,174.76 = 20,812.39 : x
  2. Step 2: Convert to fraction form
    37,806.89/52,174.76 = 20,812.39/x
  3. Step 3: Cross multiply
    37,806.89x = 52,174.76 × 20,812.39
  4. Step 4: Simplify right side
    37,806.89x = 1,085,881,218.78
  5. Step 5: Solve for x
    x = 1,085,881,218.78/37,806.89
  6. Step 6: Final answer
    x = 28,721.78

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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.