Home / 21,054.30-29,056.04-12,104.82

Finding the Fourth Proportional to 21,054.30, 29,056.04 and 12,104.82

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Solution

The fourth proportional to 21,054.30, 29,056.04 and 12,104.82 is: 16,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.30 : 29,056.04 = 12,104.82 : x
  2. Step 2: Convert to fraction form
    21,054.30/29,056.04 = 12,104.82/x
  3. Step 3: Cross multiply
    21,054.30x = 29,056.04 × 12,104.82
  4. Step 4: Simplify right side
    21,054.30x = 351,718,134.11
  5. Step 5: Solve for x
    x = 351,718,134.11/21,054.30
  6. Step 6: Final answer
    x = 16,705.29

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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.