Home / 20,245.16-27,927.78-13,523.24

Finding the Fourth Proportional to 20,245.16, 27,927.78 and 13,523.24

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Solution

The fourth proportional to 20,245.16, 27,927.78 and 13,523.24 is: 18,655.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.16 : 27,927.78 = 13,523.24 : x
  2. Step 2: Convert to fraction form
    20,245.16/27,927.78 = 13,523.24/x
  3. Step 3: Cross multiply
    20,245.16x = 27,927.78 × 13,523.24
  4. Step 4: Simplify right side
    20,245.16x = 377,674,071.61
  5. Step 5: Solve for x
    x = 377,674,071.61/20,245.16
  6. Step 6: Final answer
    x = 18,655.03

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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.