Home / 21,623.83-29,841.92-12,192.19

Finding the Fourth Proportional to 21,623.83, 29,841.92 and 12,192.19

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Solution

The fourth proportional to 21,623.83, 29,841.92 and 12,192.19 is: 16,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.83 : 29,841.92 = 12,192.19 : x
  2. Step 2: Convert to fraction form
    21,623.83/29,841.92 = 12,192.19/x
  3. Step 3: Cross multiply
    21,623.83x = 29,841.92 × 12,192.19
  4. Step 4: Simplify right side
    21,623.83x = 363,838,268.76
  5. Step 5: Solve for x
    x = 363,838,268.76/21,623.83
  6. Step 6: Final answer
    x = 16,825.80

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1.5x scale

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.