Home / 25,812.16-35,622.84-15,203.88

Finding the Fourth Proportional to 25,812.16, 35,622.84 and 15,203.88

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Solution

The fourth proportional to 25,812.16, 35,622.84 and 15,203.88 is: 20,982.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,812.16 : 35,622.84 = 15,203.88 : x
  2. Step 2: Convert to fraction form
    25,812.16/35,622.84 = 15,203.88/x
  3. Step 3: Cross multiply
    25,812.16x = 35,622.84 × 15,203.88
  4. Step 4: Simplify right side
    25,812.16x = 541,605,384.62
  5. Step 5: Solve for x
    x = 541,605,384.62/25,812.16
  6. Step 6: Final answer
    x = 20,982.57

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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.