Home / 18,385.30-27,581.53-5,904.36

Finding the Fourth Proportional to 18,385.30, 27,581.53 and 5,904.36

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Solution

The fourth proportional to 18,385.30, 27,581.53 and 5,904.36 is: 8,857.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.30 : 27,581.53 = 5,904.36 : x
  2. Step 2: Convert to fraction form
    18,385.30/27,581.53 = 5,904.36/x
  3. Step 3: Cross multiply
    18,385.30x = 27,581.53 × 5,904.36
  4. Step 4: Simplify right side
    18,385.30x = 162,851,267.71
  5. Step 5: Solve for x
    x = 162,851,267.71/18,385.30
  6. Step 6: Final answer
    x = 8,857.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.