Home / 21,098.60-29,116.68-11,539.04

Finding the Fourth Proportional to 21,098.60, 29,116.68 and 11,539.04

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Solution

The fourth proportional to 21,098.60, 29,116.68 and 11,539.04 is: 15,924.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.60 : 29,116.68 = 11,539.04 : x
  2. Step 2: Convert to fraction form
    21,098.60/29,116.68 = 11,539.04/x
  3. Step 3: Cross multiply
    21,098.60x = 29,116.68 × 11,539.04
  4. Step 4: Simplify right side
    21,098.60x = 335,978,535.19
  5. Step 5: Solve for x
    x = 335,978,535.19/21,098.60
  6. Step 6: Final answer
    x = 15,924.21

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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.