Home / 31,575.71-47,243.27-28,076.51

Finding the Fourth Proportional to 31,575.71, 47,243.27 and 28,076.51

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Solution

The fourth proportional to 31,575.71, 47,243.27 and 28,076.51 is: 42,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,575.71 : 47,243.27 = 28,076.51 : x
  2. Step 2: Convert to fraction form
    31,575.71/47,243.27 = 28,076.51/x
  3. Step 3: Cross multiply
    31,575.71x = 47,243.27 × 28,076.51
  4. Step 4: Simplify right side
    31,575.71x = 1,326,425,976.56
  5. Step 5: Solve for x
    x = 1,326,425,976.56/31,575.71
  6. Step 6: Final answer
    x = 42,007.80

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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.