Home / 18,951.48-28,367.70-15,633.72

Finding the Fourth Proportional to 18,951.48, 28,367.70 and 15,633.72

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Solution

The fourth proportional to 18,951.48, 28,367.70 and 15,633.72 is: 23,401.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.48 : 28,367.70 = 15,633.72 : x
  2. Step 2: Convert to fraction form
    18,951.48/28,367.70 = 15,633.72/x
  3. Step 3: Cross multiply
    18,951.48x = 28,367.70 × 15,633.72
  4. Step 4: Simplify right side
    18,951.48x = 443,492,678.84
  5. Step 5: Solve for x
    x = 443,492,678.84/18,951.48
  6. Step 6: Final answer
    x = 23,401.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.