Home / 18,750.42-25,856.82-13,715.46

Finding the Fourth Proportional to 18,750.42, 25,856.82 and 13,715.46

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Solution

The fourth proportional to 18,750.42, 25,856.82 and 13,715.46 is: 18,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.42 : 25,856.82 = 13,715.46 : x
  2. Step 2: Convert to fraction form
    18,750.42/25,856.82 = 13,715.46/x
  3. Step 3: Cross multiply
    18,750.42x = 25,856.82 × 13,715.46
  4. Step 4: Simplify right side
    18,750.42x = 354,638,180.44
  5. Step 5: Solve for x
    x = 354,638,180.44/18,750.42
  6. Step 6: Final answer
    x = 18,913.61

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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.