Home / 20,731.95-31,103.19-5,941.76

Finding the Fourth Proportional to 20,731.95, 31,103.19 and 5,941.76

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Solution

The fourth proportional to 20,731.95, 31,103.19 and 5,941.76 is: 8,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.95 : 31,103.19 = 5,941.76 : x
  2. Step 2: Convert to fraction form
    20,731.95/31,103.19 = 5,941.76/x
  3. Step 3: Cross multiply
    20,731.95x = 31,103.19 × 5,941.76
  4. Step 4: Simplify right side
    20,731.95x = 184,807,534.70
  5. Step 5: Solve for x
    x = 184,807,534.70/20,731.95
  6. Step 6: Final answer
    x = 8,914.14

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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.