Home / 19,215.20-28,819.80-6,070.76

Finding the Fourth Proportional to 19,215.20, 28,819.80 and 6,070.76

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Solution

The fourth proportional to 19,215.20, 28,819.80 and 6,070.76 is: 9,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.20 : 28,819.80 = 6,070.76 : x
  2. Step 2: Convert to fraction form
    19,215.20/28,819.80 = 6,070.76/x
  3. Step 3: Cross multiply
    19,215.20x = 28,819.80 × 6,070.76
  4. Step 4: Simplify right side
    19,215.20x = 174,958,089.05
  5. Step 5: Solve for x
    x = 174,958,089.05/19,215.20
  6. Step 6: Final answer
    x = 9,105.19

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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.