Home / 19,150.92-28,720.54-15,393.79

Finding the Fourth Proportional to 19,150.92, 28,720.54 and 15,393.79

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Solution

The fourth proportional to 19,150.92, 28,720.54 and 15,393.79 is: 23,085.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.92 : 28,720.54 = 15,393.79 : x
  2. Step 2: Convert to fraction form
    19,150.92/28,720.54 = 15,393.79/x
  3. Step 3: Cross multiply
    19,150.92x = 28,720.54 × 15,393.79
  4. Step 4: Simplify right side
    19,150.92x = 442,117,971.25
  5. Step 5: Solve for x
    x = 442,117,971.25/19,150.92
  6. Step 6: Final answer
    x = 23,085.99

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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.