Home / 18,747.12-25,905.30-17,836.20

Finding the Fourth Proportional to 18,747.12, 25,905.30 and 17,836.20

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Solution

The fourth proportional to 18,747.12, 25,905.30 and 17,836.20 is: 24,646.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.12 : 25,905.30 = 17,836.20 : x
  2. Step 2: Convert to fraction form
    18,747.12/25,905.30 = 17,836.20/x
  3. Step 3: Cross multiply
    18,747.12x = 25,905.30 × 17,836.20
  4. Step 4: Simplify right side
    18,747.12x = 462,052,111.86
  5. Step 5: Solve for x
    x = 462,052,111.86/18,747.12
  6. Step 6: Final answer
    x = 24,646.57

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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.