Home / 27,644.76-38,153.43-15,711.93

Finding the Fourth Proportional to 27,644.76, 38,153.43 and 15,711.93

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Solution

The fourth proportional to 27,644.76, 38,153.43 and 15,711.93 is: 21,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,644.76 : 38,153.43 = 15,711.93 : x
  2. Step 2: Convert to fraction form
    27,644.76/38,153.43 = 15,711.93/x
  3. Step 3: Cross multiply
    27,644.76x = 38,153.43 × 15,711.93
  4. Step 4: Simplify right side
    27,644.76x = 599,464,021.42
  5. Step 5: Solve for x
    x = 599,464,021.42/27,644.76
  6. Step 6: Final answer
    x = 21,684.54

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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.