Home / 30,373.46-45,575.55-20,491.97

Finding the Fourth Proportional to 30,373.46, 45,575.55 and 20,491.97

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Solution

The fourth proportional to 30,373.46, 45,575.55 and 20,491.97 is: 30,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,373.46 : 45,575.55 = 20,491.97 : x
  2. Step 2: Convert to fraction form
    30,373.46/45,575.55 = 20,491.97/x
  3. Step 3: Cross multiply
    30,373.46x = 45,575.55 × 20,491.97
  4. Step 4: Simplify right side
    30,373.46x = 933,932,917.27
  5. Step 5: Solve for x
    x = 933,932,917.27/30,373.46
  6. Step 6: Final answer
    x = 30,748.33

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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.