Home / 21,124.59-29,175.86-14,398.65

Finding the Fourth Proportional to 21,124.59, 29,175.86 and 14,398.65

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Solution

The fourth proportional to 21,124.59, 29,175.86 and 14,398.65 is: 19,886.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.59 : 29,175.86 = 14,398.65 : x
  2. Step 2: Convert to fraction form
    21,124.59/29,175.86 = 14,398.65/x
  3. Step 3: Cross multiply
    21,124.59x = 29,175.86 × 14,398.65
  4. Step 4: Simplify right side
    21,124.59x = 420,092,996.59
  5. Step 5: Solve for x
    x = 420,092,996.59/21,124.59
  6. Step 6: Final answer
    x = 19,886.44

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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.