Home / 21,883.52-30,201.48-12,933.92

Finding the Fourth Proportional to 21,883.52, 30,201.48 and 12,933.92

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Solution

The fourth proportional to 21,883.52, 30,201.48 and 12,933.92 is: 17,850.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,883.52 : 30,201.48 = 12,933.92 : x
  2. Step 2: Convert to fraction form
    21,883.52/30,201.48 = 12,933.92/x
  3. Step 3: Cross multiply
    21,883.52x = 30,201.48 × 12,933.92
  4. Step 4: Simplify right side
    21,883.52x = 390,623,526.20
  5. Step 5: Solve for x
    x = 390,623,526.20/21,883.52
  6. Step 6: Final answer
    x = 17,850.12

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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.