Home / 28,450.17-39,251.87-18,384.54

Finding the Fourth Proportional to 28,450.17, 39,251.87 and 18,384.54

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Solution

The fourth proportional to 28,450.17, 39,251.87 and 18,384.54 is: 25,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.17 : 39,251.87 = 18,384.54 : x
  2. Step 2: Convert to fraction form
    28,450.17/39,251.87 = 18,384.54/x
  3. Step 3: Cross multiply
    28,450.17x = 39,251.87 × 18,384.54
  4. Step 4: Simplify right side
    28,450.17x = 721,627,574.09
  5. Step 5: Solve for x
    x = 721,627,574.09/28,450.17
  6. Step 6: Final answer
    x = 25,364.61

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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.