Home / 20,937.54-31,403.97-6,146.58

Finding the Fourth Proportional to 20,937.54, 31,403.97 and 6,146.58

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Solution

The fourth proportional to 20,937.54, 31,403.97 and 6,146.58 is: 9,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.54 : 31,403.97 = 6,146.58 : x
  2. Step 2: Convert to fraction form
    20,937.54/31,403.97 = 6,146.58/x
  3. Step 3: Cross multiply
    20,937.54x = 31,403.97 × 6,146.58
  4. Step 4: Simplify right side
    20,937.54x = 193,027,013.92
  5. Step 5: Solve for x
    x = 193,027,013.92/20,937.54
  6. Step 6: Final answer
    x = 9,219.18

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1.5x scale

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.