Home / 20,731.80-31,088.34-5,937.33

Finding the Fourth Proportional to 20,731.80, 31,088.34 and 5,937.33

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Solution

The fourth proportional to 20,731.80, 31,088.34 and 5,937.33 is: 8,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.80 : 31,088.34 = 5,937.33 : x
  2. Step 2: Convert to fraction form
    20,731.80/31,088.34 = 5,937.33/x
  3. Step 3: Cross multiply
    20,731.80x = 31,088.34 × 5,937.33
  4. Step 4: Simplify right side
    20,731.80x = 184,581,733.73
  5. Step 5: Solve for x
    x = 184,581,733.73/20,731.80
  6. Step 6: Final answer
    x = 8,903.31

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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.