Home / 31,879.23-47,801.29-13,155.01

Finding the Fourth Proportional to 31,879.23, 47,801.29 and 13,155.01

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Solution

The fourth proportional to 31,879.23, 47,801.29 and 13,155.01 is: 19,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,879.23 : 47,801.29 = 13,155.01 : x
  2. Step 2: Convert to fraction form
    31,879.23/47,801.29 = 13,155.01/x
  3. Step 3: Cross multiply
    31,879.23x = 47,801.29 × 13,155.01
  4. Step 4: Simplify right side
    31,879.23x = 628,826,447.96
  5. Step 5: Solve for x
    x = 628,826,447.96/31,879.23
  6. Step 6: Final answer
    x = 19,725.27

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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.