Home / 25,825.12-35,621.70-15,207.28

Finding the Fourth Proportional to 25,825.12, 35,621.70 and 15,207.28

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Solution

The fourth proportional to 25,825.12, 35,621.70 and 15,207.28 is: 20,976.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,825.12 : 35,621.70 = 15,207.28 : x
  2. Step 2: Convert to fraction form
    25,825.12/35,621.70 = 15,207.28/x
  3. Step 3: Cross multiply
    25,825.12x = 35,621.70 × 15,207.28
  4. Step 4: Simplify right side
    25,825.12x = 541,709,165.98
  5. Step 5: Solve for x
    x = 541,709,165.98/25,825.12
  6. Step 6: Final answer
    x = 20,976.06

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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.