Home / 28,945.61-39,951.17-17,618.75

Finding the Fourth Proportional to 28,945.61, 39,951.17 and 17,618.75

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Solution

The fourth proportional to 28,945.61, 39,951.17 and 17,618.75 is: 24,317.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.61 : 39,951.17 = 17,618.75 : x
  2. Step 2: Convert to fraction form
    28,945.61/39,951.17 = 17,618.75/x
  3. Step 3: Cross multiply
    28,945.61x = 39,951.17 × 17,618.75
  4. Step 4: Simplify right side
    28,945.61x = 703,889,676.44
  5. Step 5: Solve for x
    x = 703,889,676.44/28,945.61
  6. Step 6: Final answer
    x = 24,317.67

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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.