Home / 19,272.94-28,921.71-10,507.85

Finding the Fourth Proportional to 19,272.94, 28,921.71 and 10,507.85

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Solution

The fourth proportional to 19,272.94, 28,921.71 and 10,507.85 is: 15,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,272.94 : 28,921.71 = 10,507.85 : x
  2. Step 2: Convert to fraction form
    19,272.94/28,921.71 = 10,507.85/x
  3. Step 3: Cross multiply
    19,272.94x = 28,921.71 × 10,507.85
  4. Step 4: Simplify right side
    19,272.94x = 303,905,015.91
  5. Step 5: Solve for x
    x = 303,905,015.91/19,272.94
  6. Step 6: Final answer
    x = 15,768.48

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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.