Home / 27,808.78-38,376.62-15,232.72

Finding the Fourth Proportional to 27,808.78, 38,376.62 and 15,232.72

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Solution

The fourth proportional to 27,808.78, 38,376.62 and 15,232.72 is: 21,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.78 : 38,376.62 = 15,232.72 : x
  2. Step 2: Convert to fraction form
    27,808.78/38,376.62 = 15,232.72/x
  3. Step 3: Cross multiply
    27,808.78x = 38,376.62 × 15,232.72
  4. Step 4: Simplify right side
    27,808.78x = 584,580,307.01
  5. Step 5: Solve for x
    x = 584,580,307.01/27,808.78
  6. Step 6: Final answer
    x = 21,021.43

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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.