Home / 25,291.12-37,985.86-20,614.56

Finding the Fourth Proportional to 25,291.12, 37,985.86 and 20,614.56

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Solution

The fourth proportional to 25,291.12, 37,985.86 and 20,614.56 is: 30,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,291.12 : 37,985.86 = 20,614.56 : x
  2. Step 2: Convert to fraction form
    25,291.12/37,985.86 = 20,614.56/x
  3. Step 3: Cross multiply
    25,291.12x = 37,985.86 × 20,614.56
  4. Step 4: Simplify right side
    25,291.12x = 783,061,790.12
  5. Step 5: Solve for x
    x = 783,061,790.12/25,291.12
  6. Step 6: Final answer
    x = 30,961.93

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1.5x scale

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.