Home / 20,256.20-27,953.49-11,303.61

Finding the Fourth Proportional to 20,256.20, 27,953.49 and 11,303.61

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Solution

The fourth proportional to 20,256.20, 27,953.49 and 11,303.61 is: 15,598.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.20 : 27,953.49 = 11,303.61 : x
  2. Step 2: Convert to fraction form
    20,256.20/27,953.49 = 11,303.61/x
  3. Step 3: Cross multiply
    20,256.20x = 27,953.49 × 11,303.61
  4. Step 4: Simplify right side
    20,256.20x = 315,975,349.10
  5. Step 5: Solve for x
    x = 315,975,349.10/20,256.20
  6. Step 6: Final answer
    x = 15,598.94

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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.