Home / 18,575.25-25,603.86-15,212.13

Finding the Fourth Proportional to 18,575.25, 25,603.86 and 15,212.13

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Solution

The fourth proportional to 18,575.25, 25,603.86 and 15,212.13 is: 20,968.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.25 : 25,603.86 = 15,212.13 : x
  2. Step 2: Convert to fraction form
    18,575.25/25,603.86 = 15,212.13/x
  3. Step 3: Cross multiply
    18,575.25x = 25,603.86 × 15,212.13
  4. Step 4: Simplify right side
    18,575.25x = 389,489,246.82
  5. Step 5: Solve for x
    x = 389,489,246.82/18,575.25
  6. Step 6: Final answer
    x = 20,968.18

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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.