Home / 25,428.24-38,128.05-10,431.23

Finding the Fourth Proportional to 25,428.24, 38,128.05 and 10,431.23

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Solution

The fourth proportional to 25,428.24, 38,128.05 and 10,431.23 is: 15,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428.24 : 38,128.05 = 10,431.23 : x
  2. Step 2: Convert to fraction form
    25,428.24/38,128.05 = 10,431.23/x
  3. Step 3: Cross multiply
    25,428.24x = 38,128.05 × 10,431.23
  4. Step 4: Simplify right side
    25,428.24x = 397,722,268.36
  5. Step 5: Solve for x
    x = 397,722,268.36/25,428.24
  6. Step 6: Final answer
    x = 15,640.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.