Home / 22,741.44-31,385.64-13,317.90

Finding the Fourth Proportional to 22,741.44, 31,385.64 and 13,317.90

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Solution

The fourth proportional to 22,741.44, 31,385.64 and 13,317.90 is: 18,380.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,741.44 : 31,385.64 = 13,317.90 : x
  2. Step 2: Convert to fraction form
    22,741.44/31,385.64 = 13,317.90/x
  3. Step 3: Cross multiply
    22,741.44x = 31,385.64 × 13,317.90
  4. Step 4: Simplify right side
    22,741.44x = 417,990,814.96
  5. Step 5: Solve for x
    x = 417,990,814.96/22,741.44
  6. Step 6: Final answer
    x = 18,380.14

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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.