Home / 30,820.20-46,230.30-28,876.20

Finding the Fourth Proportional to 30,820.20, 46,230.30 and 28,876.20

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Solution

The fourth proportional to 30,820.20, 46,230.30 and 28,876.20 is: 43,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820.20 : 46,230.30 = 28,876.20 : x
  2. Step 2: Convert to fraction form
    30,820.20/46,230.30 = 28,876.20/x
  3. Step 3: Cross multiply
    30,820.20x = 46,230.30 × 28,876.20
  4. Step 4: Simplify right side
    30,820.20x = 1,334,955,388.86
  5. Step 5: Solve for x
    x = 1,334,955,388.86/30,820.20
  6. Step 6: Final answer
    x = 43,314.30

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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.