Home / 30,499.15-45,748.74-20,035.30

Finding the Fourth Proportional to 30,499.15, 45,748.74 and 20,035.30

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Solution

The fourth proportional to 30,499.15, 45,748.74 and 20,035.30 is: 30,052.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,499.15 : 45,748.74 = 20,035.30 : x
  2. Step 2: Convert to fraction form
    30,499.15/45,748.74 = 20,035.30/x
  3. Step 3: Cross multiply
    30,499.15x = 45,748.74 × 20,035.30
  4. Step 4: Simplify right side
    30,499.15x = 916,589,730.52
  5. Step 5: Solve for x
    x = 916,589,730.52/30,499.15
  6. Step 6: Final answer
    x = 30,052.96

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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.