Home / 35,265.38-52,881.39-20,478.56

Finding the Fourth Proportional to 35,265.38, 52,881.39 and 20,478.56

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Solution

The fourth proportional to 35,265.38, 52,881.39 and 20,478.56 is: 30,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,265.38 : 52,881.39 = 20,478.56 : x
  2. Step 2: Convert to fraction form
    35,265.38/52,881.39 = 20,478.56/x
  3. Step 3: Cross multiply
    35,265.38x = 52,881.39 × 20,478.56
  4. Step 4: Simplify right side
    35,265.38x = 1,082,934,453.59
  5. Step 5: Solve for x
    x = 1,082,934,453.59/35,265.38
  6. Step 6: Final answer
    x = 30,708.15

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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.