Home / 18,589.06-25,703.36-18,288.60

Finding the Fourth Proportional to 18,589.06, 25,703.36 and 18,288.60

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Solution

The fourth proportional to 18,589.06, 25,703.36 and 18,288.60 is: 25,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589.06 : 25,703.36 = 18,288.60 : x
  2. Step 2: Convert to fraction form
    18,589.06/25,703.36 = 18,288.60/x
  3. Step 3: Cross multiply
    18,589.06x = 25,703.36 × 18,288.60
  4. Step 4: Simplify right side
    18,589.06x = 470,078,498.94
  5. Step 5: Solve for x
    x = 470,078,498.94/18,589.06
  6. Step 6: Final answer
    x = 25,287.91

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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.