Home / 18,355.11-25,306.50-15,832.32

Finding the Fourth Proportional to 18,355.11, 25,306.50 and 15,832.32

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Solution

The fourth proportional to 18,355.11, 25,306.50 and 15,832.32 is: 21,828.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,355.11 : 25,306.50 = 15,832.32 : x
  2. Step 2: Convert to fraction form
    18,355.11/25,306.50 = 15,832.32/x
  3. Step 3: Cross multiply
    18,355.11x = 25,306.50 × 15,832.32
  4. Step 4: Simplify right side
    18,355.11x = 400,660,606.08
  5. Step 5: Solve for x
    x = 400,660,606.08/18,355.11
  6. Step 6: Final answer
    x = 21,828.29

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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.