Home / 27,358.77-41,038.14-21,127.86

Finding the Fourth Proportional to 27,358.77, 41,038.14 and 21,127.86

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Solution

The fourth proportional to 27,358.77, 41,038.14 and 21,127.86 is: 31,691.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,358.77 : 41,038.14 = 21,127.86 : x
  2. Step 2: Convert to fraction form
    27,358.77/41,038.14 = 21,127.86/x
  3. Step 3: Cross multiply
    27,358.77x = 41,038.14 × 21,127.86
  4. Step 4: Simplify right side
    27,358.77x = 867,048,076.58
  5. Step 5: Solve for x
    x = 867,048,076.58/27,358.77
  6. Step 6: Final answer
    x = 31,691.78

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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.