Home / 21,623.77-29,842.20-12,192.94

Finding the Fourth Proportional to 21,623.77, 29,842.20 and 12,192.94

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Solution

The fourth proportional to 21,623.77, 29,842.20 and 12,192.94 is: 16,827.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.77 : 29,842.20 = 12,192.94 : x
  2. Step 2: Convert to fraction form
    21,623.77/29,842.20 = 12,192.94/x
  3. Step 3: Cross multiply
    21,623.77x = 29,842.20 × 12,192.94
  4. Step 4: Simplify right side
    21,623.77x = 363,864,154.07
  5. Step 5: Solve for x
    x = 363,864,154.07/21,623.77
  6. Step 6: Final answer
    x = 16,827.05

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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.