Home / 28,194.24-38,906.28-15,618

Finding the Fourth Proportional to 28,194.24, 38,906.28 and 15,618

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Solution

The fourth proportional to 28,194.24, 38,906.28 and 15,618 is: 21,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.24 : 38,906.28 = 15,618 : x
  2. Step 2: Convert to fraction form
    28,194.24/38,906.28 = 15,618/x
  3. Step 3: Cross multiply
    28,194.24x = 38,906.28 × 15,618
  4. Step 4: Simplify right side
    28,194.24x = 607,638,281.04
  5. Step 5: Solve for x
    x = 607,638,281.04/28,194.24
  6. Step 6: Final answer
    x = 21,551.86

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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.