Home / 18,428.72-25,431.70-10,471.37

Finding the Fourth Proportional to 18,428.72, 25,431.70 and 10,471.37

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Solution

The fourth proportional to 18,428.72, 25,431.70 and 10,471.37 is: 14,450.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.72 : 25,431.70 = 10,471.37 : x
  2. Step 2: Convert to fraction form
    18,428.72/25,431.70 = 10,471.37/x
  3. Step 3: Cross multiply
    18,428.72x = 25,431.70 × 10,471.37
  4. Step 4: Simplify right side
    18,428.72x = 266,304,777.83
  5. Step 5: Solve for x
    x = 266,304,777.83/18,428.72
  6. Step 6: Final answer
    x = 14,450.53

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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.