Home / 31,413.72-43,346.74-19,472.70

Finding the Fourth Proportional to 31,413.72, 43,346.74 and 19,472.70

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Solution

The fourth proportional to 31,413.72, 43,346.74 and 19,472.70 is: 26,869.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.72 : 43,346.74 = 19,472.70 : x
  2. Step 2: Convert to fraction form
    31,413.72/43,346.74 = 19,472.70/x
  3. Step 3: Cross multiply
    31,413.72x = 43,346.74 × 19,472.70
  4. Step 4: Simplify right side
    31,413.72x = 844,078,064.00
  5. Step 5: Solve for x
    x = 844,078,064.00/31,413.72
  6. Step 6: Final answer
    x = 26,869.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.