Home / 28,749.71-43,109.99-13,153.97

Finding the Fourth Proportional to 28,749.71, 43,109.99 and 13,153.97

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Solution

The fourth proportional to 28,749.71, 43,109.99 and 13,153.97 is: 19,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.71 : 43,109.99 = 13,153.97 : x
  2. Step 2: Convert to fraction form
    28,749.71/43,109.99 = 13,153.97/x
  3. Step 3: Cross multiply
    28,749.71x = 43,109.99 × 13,153.97
  4. Step 4: Simplify right side
    28,749.71x = 567,067,557.17
  5. Step 5: Solve for x
    x = 567,067,557.17/28,749.71
  6. Step 6: Final answer
    x = 19,724.29

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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.