Home / 27,906.63-38,511.41-15,331.65

Finding the Fourth Proportional to 27,906.63, 38,511.41 and 15,331.65

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Solution

The fourth proportional to 27,906.63, 38,511.41 and 15,331.65 is: 21,157.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.63 : 38,511.41 = 15,331.65 : x
  2. Step 2: Convert to fraction form
    27,906.63/38,511.41 = 15,331.65/x
  3. Step 3: Cross multiply
    27,906.63x = 38,511.41 × 15,331.65
  4. Step 4: Simplify right side
    27,906.63x = 590,443,459.13
  5. Step 5: Solve for x
    x = 590,443,459.13/27,906.63
  6. Step 6: Final answer
    x = 21,157.82

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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.