Home / 25,736.40-35,516.61-15,665.27

Finding the Fourth Proportional to 25,736.40, 35,516.61 and 15,665.27

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Solution

The fourth proportional to 25,736.40, 35,516.61 and 15,665.27 is: 21,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,736.40 : 35,516.61 = 15,665.27 : x
  2. Step 2: Convert to fraction form
    25,736.40/35,516.61 = 15,665.27/x
  3. Step 3: Cross multiply
    25,736.40x = 35,516.61 × 15,665.27
  4. Step 4: Simplify right side
    25,736.40x = 556,377,107.55
  5. Step 5: Solve for x
    x = 556,377,107.55/25,736.40
  6. Step 6: Final answer
    x = 21,618.30

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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.