Home / 25,847.13-35,672.21-15,775.32

Finding the Fourth Proportional to 25,847.13, 35,672.21 and 15,775.32

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Solution

The fourth proportional to 25,847.13, 35,672.21 and 15,775.32 is: 21,771.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,847.13 : 35,672.21 = 15,775.32 : x
  2. Step 2: Convert to fraction form
    25,847.13/35,672.21 = 15,775.32/x
  3. Step 3: Cross multiply
    25,847.13x = 35,672.21 × 15,775.32
  4. Step 4: Simplify right side
    25,847.13x = 562,740,527.86
  5. Step 5: Solve for x
    x = 562,740,527.86/25,847.13
  6. Step 6: Final answer
    x = 21,771.88

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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.