Home / 20,246.90-30,524.52-18,819.87

Finding the Fourth Proportional to 20,246.90, 30,524.52 and 18,819.87

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Solution

The fourth proportional to 20,246.90, 30,524.52 and 18,819.87 is: 28,373.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.90 : 30,524.52 = 18,819.87 : x
  2. Step 2: Convert to fraction form
    20,246.90/30,524.52 = 18,819.87/x
  3. Step 3: Cross multiply
    20,246.90x = 30,524.52 × 18,819.87
  4. Step 4: Simplify right side
    20,246.90x = 574,467,498.21
  5. Step 5: Solve for x
    x = 574,467,498.21/20,246.90
  6. Step 6: Final answer
    x = 28,373.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.