Home / 25,280.29-34,865.80-18,981.73

Finding the Fourth Proportional to 25,280.29, 34,865.80 and 18,981.73

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Solution

The fourth proportional to 25,280.29, 34,865.80 and 18,981.73 is: 26,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,280.29 : 34,865.80 = 18,981.73 : x
  2. Step 2: Convert to fraction form
    25,280.29/34,865.80 = 18,981.73/x
  3. Step 3: Cross multiply
    25,280.29x = 34,865.80 × 18,981.73
  4. Step 4: Simplify right side
    25,280.29x = 661,813,201.83
  5. Step 5: Solve for x
    x = 661,813,201.83/25,280.29
  6. Step 6: Final answer
    x = 26,179.02

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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.