Home / 21,551.06-29,741.83-12,119.63

Finding the Fourth Proportional to 21,551.06, 29,741.83 and 12,119.63

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Solution

The fourth proportional to 21,551.06, 29,741.83 and 12,119.63 is: 16,725.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.06 : 29,741.83 = 12,119.63 : x
  2. Step 2: Convert to fraction form
    21,551.06/29,741.83 = 12,119.63/x
  3. Step 3: Cross multiply
    21,551.06x = 29,741.83 × 12,119.63
  4. Step 4: Simplify right side
    21,551.06x = 360,459,864.29
  5. Step 5: Solve for x
    x = 360,459,864.29/21,551.06
  6. Step 6: Final answer
    x = 16,725.85

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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.