Home / 31,121.65-42,943.82-17,692.62

Finding the Fourth Proportional to 31,121.65, 42,943.82 and 17,692.62

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Solution

The fourth proportional to 31,121.65, 42,943.82 and 17,692.62 is: 24,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.65 : 42,943.82 = 17,692.62 : x
  2. Step 2: Convert to fraction form
    31,121.65/42,943.82 = 17,692.62/x
  3. Step 3: Cross multiply
    31,121.65x = 42,943.82 × 17,692.62
  4. Step 4: Simplify right side
    31,121.65x = 759,788,688.61
  5. Step 5: Solve for x
    x = 759,788,688.61/31,121.65
  6. Step 6: Final answer
    x = 24,413.51

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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.