Home / 27,920.64-41,889.10-11,272.16

Finding the Fourth Proportional to 27,920.64, 41,889.10 and 11,272.16

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Solution

The fourth proportional to 27,920.64, 41,889.10 and 11,272.16 is: 16,911.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.64 : 41,889.10 = 11,272.16 : x
  2. Step 2: Convert to fraction form
    27,920.64/41,889.10 = 11,272.16/x
  3. Step 3: Cross multiply
    27,920.64x = 41,889.10 × 11,272.16
  4. Step 4: Simplify right side
    27,920.64x = 472,180,637.46
  5. Step 5: Solve for x
    x = 472,180,637.46/27,920.64
  6. Step 6: Final answer
    x = 16,911.53

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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.