Home / 25,400.88-38,104.56-10,620

Finding the Fourth Proportional to 25,400.88, 38,104.56 and 10,620

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Solution

The fourth proportional to 25,400.88, 38,104.56 and 10,620 is: 15,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400.88 : 38,104.56 = 10,620 : x
  2. Step 2: Convert to fraction form
    25,400.88/38,104.56 = 10,620/x
  3. Step 3: Cross multiply
    25,400.88x = 38,104.56 × 10,620
  4. Step 4: Simplify right side
    25,400.88x = 404,670,427.20
  5. Step 5: Solve for x
    x = 404,670,427.20/25,400.88
  6. Step 6: Final answer
    x = 15,931.35

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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.