Home / 14,741.82-20,318.31-10,905.66

Finding the Fourth Proportional to 14,741.82, 20,318.31 and 10,905.66

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Solution

The fourth proportional to 14,741.82, 20,318.31 and 10,905.66 is: 15,031.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,741.82 : 20,318.31 = 10,905.66 : x
  2. Step 2: Convert to fraction form
    14,741.82/20,318.31 = 10,905.66/x
  3. Step 3: Cross multiply
    14,741.82x = 20,318.31 × 10,905.66
  4. Step 4: Simplify right side
    14,741.82x = 221,584,580.63
  5. Step 5: Solve for x
    x = 221,584,580.63/14,741.82
  6. Step 6: Final answer
    x = 15,031.02

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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.