Home / 25,611.49-35,341-15,542.38

Finding the Fourth Proportional to 25,611.49, 35,341 and 15,542.38

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Solution

The fourth proportional to 25,611.49, 35,341 and 15,542.38 is: 21,446.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,611.49 : 35,341 = 15,542.38 : x
  2. Step 2: Convert to fraction form
    25,611.49/35,341 = 15,542.38/x
  3. Step 3: Cross multiply
    25,611.49x = 35,341 × 15,542.38
  4. Step 4: Simplify right side
    25,611.49x = 549,283,251.58
  5. Step 5: Solve for x
    x = 549,283,251.58/25,611.49
  6. Step 6: Final answer
    x = 21,446.75

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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.