Home / 30,621.60-45,932.40-9,847.20

Finding the Fourth Proportional to 30,621.60, 45,932.40 and 9,847.20

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Solution

The fourth proportional to 30,621.60, 45,932.40 and 9,847.20 is: 14,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.60 : 45,932.40 = 9,847.20 : x
  2. Step 2: Convert to fraction form
    30,621.60/45,932.40 = 9,847.20/x
  3. Step 3: Cross multiply
    30,621.60x = 45,932.40 × 9,847.20
  4. Step 4: Simplify right side
    30,621.60x = 452,305,529.28
  5. Step 5: Solve for x
    x = 452,305,529.28/30,621.60
  6. Step 6: Final answer
    x = 14,770.80

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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.