Home / 21,508.32-29,653.68-13,941.36

Finding the Fourth Proportional to 21,508.32, 29,653.68 and 13,941.36

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Solution

The fourth proportional to 21,508.32, 29,653.68 and 13,941.36 is: 19,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508.32 : 29,653.68 = 13,941.36 : x
  2. Step 2: Convert to fraction form
    21,508.32/29,653.68 = 13,941.36/x
  3. Step 3: Cross multiply
    21,508.32x = 29,653.68 × 13,941.36
  4. Step 4: Simplify right side
    21,508.32x = 413,412,628.20
  5. Step 5: Solve for x
    x = 413,412,628.20/21,508.32
  6. Step 6: Final answer
    x = 19,221.06

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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.