Home / 21,566.68-29,761.80-12,612.48

Finding the Fourth Proportional to 21,566.68, 29,761.80 and 12,612.48

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Solution

The fourth proportional to 21,566.68, 29,761.80 and 12,612.48 is: 17,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,566.68 : 29,761.80 = 12,612.48 : x
  2. Step 2: Convert to fraction form
    21,566.68/29,761.80 = 12,612.48/x
  3. Step 3: Cross multiply
    21,566.68x = 29,761.80 × 12,612.48
  4. Step 4: Simplify right side
    21,566.68x = 375,370,107.26
  5. Step 5: Solve for x
    x = 375,370,107.26/21,566.68
  6. Step 6: Final answer
    x = 17,405.09

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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.