Home / 31,112.20-46,638.79-12,403.73

Finding the Fourth Proportional to 31,112.20, 46,638.79 and 12,403.73

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Solution

The fourth proportional to 31,112.20, 46,638.79 and 12,403.73 is: 18,593.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,112.20 : 46,638.79 = 12,403.73 : x
  2. Step 2: Convert to fraction form
    31,112.20/46,638.79 = 12,403.73/x
  3. Step 3: Cross multiply
    31,112.20x = 46,638.79 × 12,403.73
  4. Step 4: Simplify right side
    31,112.20x = 578,495,044.27
  5. Step 5: Solve for x
    x = 578,495,044.27/31,112.20
  6. Step 6: Final answer
    x = 18,593.83

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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.