Home / 31,939.07-47,908.60-14,413.91

Finding the Fourth Proportional to 31,939.07, 47,908.60 and 14,413.91

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Solution

The fourth proportional to 31,939.07, 47,908.60 and 14,413.91 is: 21,620.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,939.07 : 47,908.60 = 14,413.91 : x
  2. Step 2: Convert to fraction form
    31,939.07/47,908.60 = 14,413.91/x
  3. Step 3: Cross multiply
    31,939.07x = 47,908.60 × 14,413.91
  4. Step 4: Simplify right side
    31,939.07x = 690,550,248.63
  5. Step 5: Solve for x
    x = 690,550,248.63/31,939.07
  6. Step 6: Final answer
    x = 21,620.86

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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.