Home / 25,458.28-38,146.38-13,777

Finding the Fourth Proportional to 25,458.28, 38,146.38 and 13,777

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Solution

The fourth proportional to 25,458.28, 38,146.38 and 13,777 is: 20,643.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.28 : 38,146.38 = 13,777 : x
  2. Step 2: Convert to fraction form
    25,458.28/38,146.38 = 13,777/x
  3. Step 3: Cross multiply
    25,458.28x = 38,146.38 × 13,777
  4. Step 4: Simplify right side
    25,458.28x = 525,542,677.26
  5. Step 5: Solve for x
    x = 525,542,677.26/25,458.28
  6. Step 6: Final answer
    x = 20,643.29

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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.