Home / 25,172.36-34,737.29-13,687.02

Finding the Fourth Proportional to 25,172.36, 34,737.29 and 13,687.02

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Solution

The fourth proportional to 25,172.36, 34,737.29 and 13,687.02 is: 18,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,172.36 : 34,737.29 = 13,687.02 : x
  2. Step 2: Convert to fraction form
    25,172.36/34,737.29 = 13,687.02/x
  3. Step 3: Cross multiply
    25,172.36x = 34,737.29 × 13,687.02
  4. Step 4: Simplify right side
    25,172.36x = 475,450,121.31
  5. Step 5: Solve for x
    x = 475,450,121.31/25,172.36
  6. Step 6: Final answer
    x = 18,887.78

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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.