Home / 25,143.44-34,688.40-15,072.08

Finding the Fourth Proportional to 25,143.44, 34,688.40 and 15,072.08

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Solution

The fourth proportional to 25,143.44, 34,688.40 and 15,072.08 is: 20,793.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,143.44 : 34,688.40 = 15,072.08 : x
  2. Step 2: Convert to fraction form
    25,143.44/34,688.40 = 15,072.08/x
  3. Step 3: Cross multiply
    25,143.44x = 34,688.40 × 15,072.08
  4. Step 4: Simplify right side
    25,143.44x = 522,826,339.87
  5. Step 5: Solve for x
    x = 522,826,339.87/25,143.44
  6. Step 6: Final answer
    x = 20,793.75

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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.