Home / 30,199.96-45,279.27-15,380.20

Finding the Fourth Proportional to 30,199.96, 45,279.27 and 15,380.20

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Solution

The fourth proportional to 30,199.96, 45,279.27 and 15,380.20 is: 23,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,199.96 : 45,279.27 = 15,380.20 : x
  2. Step 2: Convert to fraction form
    30,199.96/45,279.27 = 15,380.20/x
  3. Step 3: Cross multiply
    30,199.96x = 45,279.27 × 15,380.20
  4. Step 4: Simplify right side
    30,199.96x = 696,404,228.45
  5. Step 5: Solve for x
    x = 696,404,228.45/30,199.96
  6. Step 6: Final answer
    x = 23,059.77

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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.