Home / 20,176.34-27,842.93-11,223.65

Finding the Fourth Proportional to 20,176.34, 27,842.93 and 11,223.65

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Solution

The fourth proportional to 20,176.34, 27,842.93 and 11,223.65 is: 15,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.34 : 27,842.93 = 11,223.65 : x
  2. Step 2: Convert to fraction form
    20,176.34/27,842.93 = 11,223.65/x
  3. Step 3: Cross multiply
    20,176.34x = 27,842.93 × 11,223.65
  4. Step 4: Simplify right side
    20,176.34x = 312,499,105.96
  5. Step 5: Solve for x
    x = 312,499,105.96/20,176.34
  6. Step 6: Final answer
    x = 15,488.40

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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.