Home / 21,624.04-29,839.08-13,663.36

Finding the Fourth Proportional to 21,624.04, 29,839.08 and 13,663.36

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Solution

The fourth proportional to 21,624.04, 29,839.08 and 13,663.36 is: 18,854.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,624.04 : 29,839.08 = 13,663.36 : x
  2. Step 2: Convert to fraction form
    21,624.04/29,839.08 = 13,663.36/x
  3. Step 3: Cross multiply
    21,624.04x = 29,839.08 × 13,663.36
  4. Step 4: Simplify right side
    21,624.04x = 407,702,092.11
  5. Step 5: Solve for x
    x = 407,702,092.11/21,624.04
  6. Step 6: Final answer
    x = 18,854.11

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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.