Home / 18,105.24-24,976.08-13,381.32

Finding the Fourth Proportional to 18,105.24, 24,976.08 and 13,381.32

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Solution

The fourth proportional to 18,105.24, 24,976.08 and 13,381.32 is: 18,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.24 : 24,976.08 = 13,381.32 : x
  2. Step 2: Convert to fraction form
    18,105.24/24,976.08 = 13,381.32/x
  3. Step 3: Cross multiply
    18,105.24x = 24,976.08 × 13,381.32
  4. Step 4: Simplify right side
    18,105.24x = 334,212,918.83
  5. Step 5: Solve for x
    x = 334,212,918.83/18,105.24
  6. Step 6: Final answer
    x = 18,459.46

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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.