Home / 21,081.01-29,088.84-12,125.11

Finding the Fourth Proportional to 21,081.01, 29,088.84 and 12,125.11

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Solution

The fourth proportional to 21,081.01, 29,088.84 and 12,125.11 is: 16,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.01 : 29,088.84 = 12,125.11 : x
  2. Step 2: Convert to fraction form
    21,081.01/29,088.84 = 12,125.11/x
  3. Step 3: Cross multiply
    21,081.01x = 29,088.84 × 12,125.11
  4. Step 4: Simplify right side
    21,081.01x = 352,705,384.77
  5. Step 5: Solve for x
    x = 352,705,384.77/21,081.01
  6. Step 6: Final answer
    x = 16,730.95

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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.