Home / 23,116.56-31,914.54-15,172.68

Finding the Fourth Proportional to 23,116.56, 31,914.54 and 15,172.68

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Solution

The fourth proportional to 23,116.56, 31,914.54 and 15,172.68 is: 20,947.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,116.56 : 31,914.54 = 15,172.68 : x
  2. Step 2: Convert to fraction form
    23,116.56/31,914.54 = 15,172.68/x
  3. Step 3: Cross multiply
    23,116.56x = 31,914.54 × 15,172.68
  4. Step 4: Simplify right side
    23,116.56x = 484,229,102.77
  5. Step 5: Solve for x
    x = 484,229,102.77/23,116.56
  6. Step 6: Final answer
    x = 20,947.28

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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.