Home / 19,203.76-26,495.10-15,157.81

Finding the Fourth Proportional to 19,203.76, 26,495.10 and 15,157.81

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Solution

The fourth proportional to 19,203.76, 26,495.10 and 15,157.81 is: 20,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.76 : 26,495.10 = 15,157.81 : x
  2. Step 2: Convert to fraction form
    19,203.76/26,495.10 = 15,157.81/x
  3. Step 3: Cross multiply
    19,203.76x = 26,495.10 × 15,157.81
  4. Step 4: Simplify right side
    19,203.76x = 401,607,691.73
  5. Step 5: Solve for x
    x = 401,607,691.73/19,203.76
  6. Step 6: Final answer
    x = 20,912.97

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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.