Home / 21,641.34-29,862.63-12,208.08

Finding the Fourth Proportional to 21,641.34, 29,862.63 and 12,208.08

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Solution

The fourth proportional to 21,641.34, 29,862.63 and 12,208.08 is: 16,845.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,641.34 : 29,862.63 = 12,208.08 : x
  2. Step 2: Convert to fraction form
    21,641.34/29,862.63 = 12,208.08/x
  3. Step 3: Cross multiply
    21,641.34x = 29,862.63 × 12,208.08
  4. Step 4: Simplify right side
    21,641.34x = 364,565,376.05
  5. Step 5: Solve for x
    x = 364,565,376.05/21,641.34
  6. Step 6: Final answer
    x = 16,845.79

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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.