Home / 31,930.24-47,845.95-21,939.76

Finding the Fourth Proportional to 31,930.24, 47,845.95 and 21,939.76

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Solution

The fourth proportional to 31,930.24, 47,845.95 and 21,939.76 is: 32,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,930.24 : 47,845.95 = 21,939.76 : x
  2. Step 2: Convert to fraction form
    31,930.24/47,845.95 = 21,939.76/x
  3. Step 3: Cross multiply
    31,930.24x = 47,845.95 × 21,939.76
  4. Step 4: Simplify right side
    31,930.24x = 1,049,728,659.97
  5. Step 5: Solve for x
    x = 1,049,728,659.97/31,930.24
  6. Step 6: Final answer
    x = 32,875.69

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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.