Home / 17,285.78-23,848.13-11,320.85

Finding the Fourth Proportional to 17,285.78, 23,848.13 and 11,320.85

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Solution

The fourth proportional to 17,285.78, 23,848.13 and 11,320.85 is: 15,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,285.78 : 23,848.13 = 11,320.85 : x
  2. Step 2: Convert to fraction form
    17,285.78/23,848.13 = 11,320.85/x
  3. Step 3: Cross multiply
    17,285.78x = 23,848.13 × 11,320.85
  4. Step 4: Simplify right side
    17,285.78x = 269,980,926.67
  5. Step 5: Solve for x
    x = 269,980,926.67/17,285.78
  6. Step 6: Final answer
    x = 15,618.68

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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.