Home / 31,541.47-47,310.35-11,818.37

Finding the Fourth Proportional to 31,541.47, 47,310.35 and 11,818.37

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Solution

The fourth proportional to 31,541.47, 47,310.35 and 11,818.37 is: 17,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,541.47 : 47,310.35 = 11,818.37 : x
  2. Step 2: Convert to fraction form
    31,541.47/47,310.35 = 11,818.37/x
  3. Step 3: Cross multiply
    31,541.47x = 47,310.35 × 11,818.37
  4. Step 4: Simplify right side
    31,541.47x = 559,131,280.31
  5. Step 5: Solve for x
    x = 559,131,280.31/31,541.47
  6. Step 6: Final answer
    x = 17,726.86

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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.