Home / 19,034.87-28,530.43-10,257.71

Finding the Fourth Proportional to 19,034.87, 28,530.43 and 10,257.71

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Solution

The fourth proportional to 19,034.87, 28,530.43 and 10,257.71 is: 15,374.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,034.87 : 28,530.43 = 10,257.71 : x
  2. Step 2: Convert to fraction form
    19,034.87/28,530.43 = 10,257.71/x
  3. Step 3: Cross multiply
    19,034.87x = 28,530.43 × 10,257.71
  4. Step 4: Simplify right side
    19,034.87x = 292,656,708.82
  5. Step 5: Solve for x
    x = 292,656,708.82/19,034.87
  6. Step 6: Final answer
    x = 15,374.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.