Home / 18,529.90-25,571.10-10,031.86

Finding the Fourth Proportional to 18,529.90, 25,571.10 and 10,031.86

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Solution

The fourth proportional to 18,529.90, 25,571.10 and 10,031.86 is: 13,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,529.90 : 25,571.10 = 10,031.86 : x
  2. Step 2: Convert to fraction form
    18,529.90/25,571.10 = 10,031.86/x
  3. Step 3: Cross multiply
    18,529.90x = 25,571.10 × 10,031.86
  4. Step 4: Simplify right side
    18,529.90x = 256,525,695.25
  5. Step 5: Solve for x
    x = 256,525,695.25/18,529.90
  6. Step 6: Final answer
    x = 13,843.88

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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.