Home / 23,172.96-31,980.48-13,102.56

Finding the Fourth Proportional to 23,172.96, 31,980.48 and 13,102.56

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Solution

The fourth proportional to 23,172.96, 31,980.48 and 13,102.56 is: 18,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,172.96 : 31,980.48 = 13,102.56 : x
  2. Step 2: Convert to fraction form
    23,172.96/31,980.48 = 13,102.56/x
  3. Step 3: Cross multiply
    23,172.96x = 31,980.48 × 13,102.56
  4. Step 4: Simplify right side
    23,172.96x = 419,026,158.03
  5. Step 5: Solve for x
    x = 419,026,158.03/23,172.96
  6. Step 6: Final answer
    x = 18,082.55

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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.