Home / 27,660.93-38,171.91-15,724.27

Finding the Fourth Proportional to 27,660.93, 38,171.91 and 15,724.27

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Solution

The fourth proportional to 27,660.93, 38,171.91 and 15,724.27 is: 21,699.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,660.93 : 38,171.91 = 15,724.27 : x
  2. Step 2: Convert to fraction form
    27,660.93/38,171.91 = 15,724.27/x
  3. Step 3: Cross multiply
    27,660.93x = 38,171.91 × 15,724.27
  4. Step 4: Simplify right side
    27,660.93x = 600,225,323.83
  5. Step 5: Solve for x
    x = 600,225,323.83/27,660.93
  6. Step 6: Final answer
    x = 21,699.39

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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.