Home / 21,054.15-29,042.55-13,497.84

Finding the Fourth Proportional to 21,054.15, 29,042.55 and 13,497.84

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Solution

The fourth proportional to 21,054.15, 29,042.55 and 13,497.84 is: 18,619.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.15 : 29,042.55 = 13,497.84 : x
  2. Step 2: Convert to fraction form
    21,054.15/29,042.55 = 13,497.84/x
  3. Step 3: Cross multiply
    21,054.15x = 29,042.55 × 13,497.84
  4. Step 4: Simplify right side
    21,054.15x = 392,011,693.09
  5. Step 5: Solve for x
    x = 392,011,693.09/21,054.15
  6. Step 6: Final answer
    x = 18,619.21

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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.