Home / 20,342.30-28,071.46-11,844.65

Finding the Fourth Proportional to 20,342.30, 28,071.46 and 11,844.65

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Solution

The fourth proportional to 20,342.30, 28,071.46 and 11,844.65 is: 16,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342.30 : 28,071.46 = 11,844.65 : x
  2. Step 2: Convert to fraction form
    20,342.30/28,071.46 = 11,844.65/x
  3. Step 3: Cross multiply
    20,342.30x = 28,071.46 × 11,844.65
  4. Step 4: Simplify right side
    20,342.30x = 332,496,703.67
  5. Step 5: Solve for x
    x = 332,496,703.67/20,342.30
  6. Step 6: Final answer
    x = 16,345.09

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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.