Home / 27,613.72-41,390.79-13,557.40

Finding the Fourth Proportional to 27,613.72, 41,390.79 and 13,557.40

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Solution

The fourth proportional to 27,613.72, 41,390.79 and 13,557.40 is: 20,321.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,613.72 : 41,390.79 = 13,557.40 : x
  2. Step 2: Convert to fraction form
    27,613.72/41,390.79 = 13,557.40/x
  3. Step 3: Cross multiply
    27,613.72x = 41,390.79 × 13,557.40
  4. Step 4: Simplify right side
    27,613.72x = 561,151,496.35
  5. Step 5: Solve for x
    x = 561,151,496.35/27,613.72
  6. Step 6: Final answer
    x = 20,321.47

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1.5x scale

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.