Home / 31,413.84-47,136.13-14,775.55

Finding the Fourth Proportional to 31,413.84, 47,136.13 and 14,775.55

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Solution

The fourth proportional to 31,413.84, 47,136.13 and 14,775.55 is: 22,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.84 : 47,136.13 = 14,775.55 : x
  2. Step 2: Convert to fraction form
    31,413.84/47,136.13 = 14,775.55/x
  3. Step 3: Cross multiply
    31,413.84x = 47,136.13 × 14,775.55
  4. Step 4: Simplify right side
    31,413.84x = 696,462,245.62
  5. Step 5: Solve for x
    x = 696,462,245.62/31,413.84
  6. Step 6: Final answer
    x = 22,170.55

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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.