Home / 31,858.20-47,785.77-13,137.93

Finding the Fourth Proportional to 31,858.20, 47,785.77 and 13,137.93

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Solution

The fourth proportional to 31,858.20, 47,785.77 and 13,137.93 is: 19,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,858.20 : 47,785.77 = 13,137.93 : x
  2. Step 2: Convert to fraction form
    31,858.20/47,785.77 = 13,137.93/x
  3. Step 3: Cross multiply
    31,858.20x = 47,785.77 × 13,137.93
  4. Step 4: Simplify right side
    31,858.20x = 627,806,101.26
  5. Step 5: Solve for x
    x = 627,806,101.26/31,858.20
  6. Step 6: Final answer
    x = 19,706.26

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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.