Home / 27,666.42-38,168.38-19,287.78

Finding the Fourth Proportional to 27,666.42, 38,168.38 and 19,287.78

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Solution

The fourth proportional to 27,666.42, 38,168.38 and 19,287.78 is: 26,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666.42 : 38,168.38 = 19,287.78 : x
  2. Step 2: Convert to fraction form
    27,666.42/38,168.38 = 19,287.78/x
  3. Step 3: Cross multiply
    27,666.42x = 38,168.38 × 19,287.78
  4. Step 4: Simplify right side
    27,666.42x = 736,183,316.40
  5. Step 5: Solve for x
    x = 736,183,316.40/27,666.42
  6. Step 6: Final answer
    x = 26,609.27

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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.