Home / 17,885.52-26,828.47-5,405.65

Finding the Fourth Proportional to 17,885.52, 26,828.47 and 5,405.65

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Solution

The fourth proportional to 17,885.52, 26,828.47 and 5,405.65 is: 8,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,885.52 : 26,828.47 = 5,405.65 : x
  2. Step 2: Convert to fraction form
    17,885.52/26,828.47 = 5,405.65/x
  3. Step 3: Cross multiply
    17,885.52x = 26,828.47 × 5,405.65
  4. Step 4: Simplify right side
    17,885.52x = 145,025,228.13
  5. Step 5: Solve for x
    x = 145,025,228.13/17,885.52
  6. Step 6: Final answer
    x = 8,108.53

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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.