Home / 30,148.08-41,609.24-28,819.12

Finding the Fourth Proportional to 30,148.08, 41,609.24 and 28,819.12

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Solution

The fourth proportional to 30,148.08, 41,609.24 and 28,819.12 is: 39,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,148.08 : 41,609.24 = 28,819.12 : x
  2. Step 2: Convert to fraction form
    30,148.08/41,609.24 = 28,819.12/x
  3. Step 3: Cross multiply
    30,148.08x = 41,609.24 × 28,819.12
  4. Step 4: Simplify right side
    30,148.08x = 1,199,141,680.67
  5. Step 5: Solve for x
    x = 1,199,141,680.67/30,148.08
  6. Step 6: Final answer
    x = 39,775.06

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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.