Home / 30,333.60-45,451.80-19,933.20

Finding the Fourth Proportional to 30,333.60, 45,451.80 and 19,933.20

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Solution

The fourth proportional to 30,333.60, 45,451.80 and 19,933.20 is: 29,867.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,333.60 : 45,451.80 = 19,933.20 : x
  2. Step 2: Convert to fraction form
    30,333.60/45,451.80 = 19,933.20/x
  3. Step 3: Cross multiply
    30,333.60x = 45,451.80 × 19,933.20
  4. Step 4: Simplify right side
    30,333.60x = 905,999,819.76
  5. Step 5: Solve for x
    x = 905,999,819.76/30,333.60
  6. Step 6: Final answer
    x = 29,867.86

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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.