Home / 27,828.36-38,420.93-18,285.24

Finding the Fourth Proportional to 27,828.36, 38,420.93 and 18,285.24

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Solution

The fourth proportional to 27,828.36, 38,420.93 and 18,285.24 is: 25,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,828.36 : 38,420.93 = 18,285.24 : x
  2. Step 2: Convert to fraction form
    27,828.36/38,420.93 = 18,285.24/x
  3. Step 3: Cross multiply
    27,828.36x = 38,420.93 × 18,285.24
  4. Step 4: Simplify right side
    27,828.36x = 702,536,115.86
  5. Step 5: Solve for x
    x = 702,536,115.86/27,828.36
  6. Step 6: Final answer
    x = 25,245.33

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Similar ratio
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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.