Home / 25,517.09-35,208.14-15,443.53

Finding the Fourth Proportional to 25,517.09, 35,208.14 and 15,443.53

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Solution

The fourth proportional to 25,517.09, 35,208.14 and 15,443.53 is: 21,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,517.09 : 35,208.14 = 15,443.53 : x
  2. Step 2: Convert to fraction form
    25,517.09/35,208.14 = 15,443.53/x
  3. Step 3: Cross multiply
    25,517.09x = 35,208.14 × 15,443.53
  4. Step 4: Simplify right side
    25,517.09x = 543,737,801.10
  5. Step 5: Solve for x
    x = 543,737,801.10/25,517.09
  6. Step 6: Final answer
    x = 21,308.77

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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.