Home / 21,544.31-29,731.52-11,984.96

Finding the Fourth Proportional to 21,544.31, 29,731.52 and 11,984.96

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Solution

The fourth proportional to 21,544.31, 29,731.52 and 11,984.96 is: 16,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,544.31 : 29,731.52 = 11,984.96 : x
  2. Step 2: Convert to fraction form
    21,544.31/29,731.52 = 11,984.96/x
  3. Step 3: Cross multiply
    21,544.31x = 29,731.52 × 11,984.96
  4. Step 4: Simplify right side
    21,544.31x = 356,331,182.23
  5. Step 5: Solve for x
    x = 356,331,182.23/21,544.31
  6. Step 6: Final answer
    x = 16,539.45

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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.