Home / 21,248.96-31,873.71-11,887.52

Finding the Fourth Proportional to 21,248.96, 31,873.71 and 11,887.52

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Solution

The fourth proportional to 21,248.96, 31,873.71 and 11,887.52 is: 17,831.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.96 : 31,873.71 = 11,887.52 : x
  2. Step 2: Convert to fraction form
    21,248.96/31,873.71 = 11,887.52/x
  3. Step 3: Cross multiply
    21,248.96x = 31,873.71 × 11,887.52
  4. Step 4: Simplify right side
    21,248.96x = 378,899,365.10
  5. Step 5: Solve for x
    x = 378,899,365.10/21,248.96
  6. Step 6: Final answer
    x = 17,831.43

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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.