Home / 21,248.88-31,873.44-7,924.86

Finding the Fourth Proportional to 21,248.88, 31,873.44 and 7,924.86

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Solution

The fourth proportional to 21,248.88, 31,873.44 and 7,924.86 is: 11,887.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.88 : 31,873.44 = 7,924.86 : x
  2. Step 2: Convert to fraction form
    21,248.88/31,873.44 = 7,924.86/x
  3. Step 3: Cross multiply
    21,248.88x = 31,873.44 × 7,924.86
  4. Step 4: Simplify right side
    21,248.88x = 252,592,549.72
  5. Step 5: Solve for x
    x = 252,592,549.72/21,248.88
  6. Step 6: Final answer
    x = 11,887.33

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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.