Home / 29,380.92-40,528.80-21,413.76

Finding the Fourth Proportional to 29,380.92, 40,528.80 and 21,413.76

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Solution

The fourth proportional to 29,380.92, 40,528.80 and 21,413.76 is: 29,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,380.92 : 40,528.80 = 21,413.76 : x
  2. Step 2: Convert to fraction form
    29,380.92/40,528.80 = 21,413.76/x
  3. Step 3: Cross multiply
    29,380.92x = 40,528.80 × 21,413.76
  4. Step 4: Simplify right side
    29,380.92x = 867,873,996.29
  5. Step 5: Solve for x
    x = 867,873,996.29/29,380.92
  6. Step 6: Final answer
    x = 29,538.69

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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.