Home / 35,516.40-53,274.60-20,717.70

Finding the Fourth Proportional to 35,516.40, 53,274.60 and 20,717.70

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Solution

The fourth proportional to 35,516.40, 53,274.60 and 20,717.70 is: 31,076.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,516.40 : 53,274.60 = 20,717.70 : x
  2. Step 2: Convert to fraction form
    35,516.40/53,274.60 = 20,717.70/x
  3. Step 3: Cross multiply
    35,516.40x = 53,274.60 × 20,717.70
  4. Step 4: Simplify right side
    35,516.40x = 1,103,727,180.42
  5. Step 5: Solve for x
    x = 1,103,727,180.42/35,516.40
  6. Step 6: Final answer
    x = 31,076.55

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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.