Home / 21,417.24-29,558-12,342.92

Finding the Fourth Proportional to 21,417.24, 29,558 and 12,342.92

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Solution

The fourth proportional to 21,417.24, 29,558 and 12,342.92 is: 17,034.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.24 : 29,558 = 12,342.92 : x
  2. Step 2: Convert to fraction form
    21,417.24/29,558 = 12,342.92/x
  3. Step 3: Cross multiply
    21,417.24x = 29,558 × 12,342.92
  4. Step 4: Simplify right side
    21,417.24x = 364,832,029.36
  5. Step 5: Solve for x
    x = 364,832,029.36/21,417.24
  6. Step 6: Final answer
    x = 17,034.50

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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.