Home / 21,833.97-32,765.30-11,980.17

Finding the Fourth Proportional to 21,833.97, 32,765.30 and 11,980.17

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Solution

The fourth proportional to 21,833.97, 32,765.30 and 11,980.17 is: 17,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,833.97 : 32,765.30 = 11,980.17 : x
  2. Step 2: Convert to fraction form
    21,833.97/32,765.30 = 11,980.17/x
  3. Step 3: Cross multiply
    21,833.97x = 32,765.30 × 11,980.17
  4. Step 4: Simplify right side
    21,833.97x = 392,533,804.20
  5. Step 5: Solve for x
    x = 392,533,804.20/21,833.97
  6. Step 6: Final answer
    x = 17,978.12

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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.