Home / 25,627.12-35,367.78-15,558.16

Finding the Fourth Proportional to 25,627.12, 35,367.78 and 15,558.16

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Solution

The fourth proportional to 25,627.12, 35,367.78 and 15,558.16 is: 21,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,627.12 : 35,367.78 = 15,558.16 : x
  2. Step 2: Convert to fraction form
    25,627.12/35,367.78 = 15,558.16/x
  3. Step 3: Cross multiply
    25,627.12x = 35,367.78 × 15,558.16
  4. Step 4: Simplify right side
    25,627.12x = 550,257,580.08
  5. Step 5: Solve for x
    x = 550,257,580.08/25,627.12
  6. Step 6: Final answer
    x = 21,471.69

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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.