Home / 21,589.12-29,789.04-14,036.32

Finding the Fourth Proportional to 21,589.12, 29,789.04 and 14,036.32

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Solution

The fourth proportional to 21,589.12, 29,789.04 and 14,036.32 is: 19,367.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,589.12 : 29,789.04 = 14,036.32 : x
  2. Step 2: Convert to fraction form
    21,589.12/29,789.04 = 14,036.32/x
  3. Step 3: Cross multiply
    21,589.12x = 29,789.04 × 14,036.32
  4. Step 4: Simplify right side
    21,589.12x = 418,128,497.93
  5. Step 5: Solve for x
    x = 418,128,497.93/21,589.12
  6. Step 6: Final answer
    x = 19,367.56

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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.