Home / 27,905.54-38,511.54-15,330.42

Finding the Fourth Proportional to 27,905.54, 38,511.54 and 15,330.42

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Solution

The fourth proportional to 27,905.54, 38,511.54 and 15,330.42 is: 21,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.54 : 38,511.54 = 15,330.42 : x
  2. Step 2: Convert to fraction form
    27,905.54/38,511.54 = 15,330.42/x
  3. Step 3: Cross multiply
    27,905.54x = 38,511.54 × 15,330.42
  4. Step 4: Simplify right side
    27,905.54x = 590,398,083.05
  5. Step 5: Solve for x
    x = 590,398,083.05/27,905.54
  6. Step 6: Final answer
    x = 21,157.02

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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.