Home / 20,819.35-31,228.74-5,024.24

Finding the Fourth Proportional to 20,819.35, 31,228.74 and 5,024.24

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Solution

The fourth proportional to 20,819.35, 31,228.74 and 5,024.24 is: 7,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819.35 : 31,228.74 = 5,024.24 : x
  2. Step 2: Convert to fraction form
    20,819.35/31,228.74 = 5,024.24/x
  3. Step 3: Cross multiply
    20,819.35x = 31,228.74 × 5,024.24
  4. Step 4: Simplify right side
    20,819.35x = 156,900,821.28
  5. Step 5: Solve for x
    x = 156,900,821.28/20,819.35
  6. Step 6: Final answer
    x = 7,536.30

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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.