Home / 21,554.06-29,744.31-12,122.62

Finding the Fourth Proportional to 21,554.06, 29,744.31 and 12,122.62

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Solution

The fourth proportional to 21,554.06, 29,744.31 and 12,122.62 is: 16,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.06 : 29,744.31 = 12,122.62 : x
  2. Step 2: Convert to fraction form
    21,554.06/29,744.31 = 12,122.62/x
  3. Step 3: Cross multiply
    21,554.06x = 29,744.31 × 12,122.62
  4. Step 4: Simplify right side
    21,554.06x = 360,578,967.29
  5. Step 5: Solve for x
    x = 360,578,967.29/21,554.06
  6. Step 6: Final answer
    x = 16,729.05

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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.