Home / 29,285.30-40,413.78-15,856.71

Finding the Fourth Proportional to 29,285.30, 40,413.78 and 15,856.71

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Solution

The fourth proportional to 29,285.30, 40,413.78 and 15,856.71 is: 21,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,285.30 : 40,413.78 = 15,856.71 : x
  2. Step 2: Convert to fraction form
    29,285.30/40,413.78 = 15,856.71/x
  3. Step 3: Cross multiply
    29,285.30x = 40,413.78 × 15,856.71
  4. Step 4: Simplify right side
    29,285.30x = 640,829,589.46
  5. Step 5: Solve for x
    x = 640,829,589.46/29,285.30
  6. Step 6: Final answer
    x = 21,882.30

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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.