Home / 27,866.33-38,455.52-15,929.92

Finding the Fourth Proportional to 27,866.33, 38,455.52 and 15,929.92

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Solution

The fourth proportional to 27,866.33, 38,455.52 and 15,929.92 is: 21,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,866.33 : 38,455.52 = 15,929.92 : x
  2. Step 2: Convert to fraction form
    27,866.33/38,455.52 = 15,929.92/x
  3. Step 3: Cross multiply
    27,866.33x = 38,455.52 × 15,929.92
  4. Step 4: Simplify right side
    27,866.33x = 612,593,357.16
  5. Step 5: Solve for x
    x = 612,593,357.16/27,866.33
  6. Step 6: Final answer
    x = 21,983.28

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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.