Home / 27,921.92-38,532.33-15,985.35

Finding the Fourth Proportional to 27,921.92, 38,532.33 and 15,985.35

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Solution

The fourth proportional to 27,921.92, 38,532.33 and 15,985.35 is: 22,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.92 : 38,532.33 = 15,985.35 : x
  2. Step 2: Convert to fraction form
    27,921.92/38,532.33 = 15,985.35/x
  3. Step 3: Cross multiply
    27,921.92x = 38,532.33 × 15,985.35
  4. Step 4: Simplify right side
    27,921.92x = 615,952,696.81
  5. Step 5: Solve for x
    x = 615,952,696.81/27,921.92
  6. Step 6: Final answer
    x = 22,059.83

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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.