Home / 21,663.22-29,878.26-14,111.93

Finding the Fourth Proportional to 21,663.22, 29,878.26 and 14,111.93

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Solution

The fourth proportional to 21,663.22, 29,878.26 and 14,111.93 is: 19,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,663.22 : 29,878.26 = 14,111.93 : x
  2. Step 2: Convert to fraction form
    21,663.22/29,878.26 = 14,111.93/x
  3. Step 3: Cross multiply
    21,663.22x = 29,878.26 × 14,111.93
  4. Step 4: Simplify right side
    21,663.22x = 421,639,913.64
  5. Step 5: Solve for x
    x = 421,639,913.64/21,663.22
  6. Step 6: Final answer
    x = 19,463.40

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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.