Home / 31,413.12-47,081.31-14,750.91

Finding the Fourth Proportional to 31,413.12, 47,081.31 and 14,750.91

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Solution

The fourth proportional to 31,413.12, 47,081.31 and 14,750.91 is: 22,108.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.12 : 47,081.31 = 14,750.91 : x
  2. Step 2: Convert to fraction form
    31,413.12/47,081.31 = 14,750.91/x
  3. Step 3: Cross multiply
    31,413.12x = 47,081.31 × 14,750.91
  4. Step 4: Simplify right side
    31,413.12x = 694,492,166.49
  5. Step 5: Solve for x
    x = 694,492,166.49/31,413.12
  6. Step 6: Final answer
    x = 22,108.35

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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.