Home / 30,305.85-45,465.67-9,247.78

Finding the Fourth Proportional to 30,305.85, 45,465.67 and 9,247.78

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Solution

The fourth proportional to 30,305.85, 45,465.67 and 9,247.78 is: 13,873.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,305.85 : 45,465.67 = 9,247.78 : x
  2. Step 2: Convert to fraction form
    30,305.85/45,465.67 = 9,247.78/x
  3. Step 3: Cross multiply
    30,305.85x = 45,465.67 × 9,247.78
  4. Step 4: Simplify right side
    30,305.85x = 420,456,513.71
  5. Step 5: Solve for x
    x = 420,456,513.71/30,305.85
  6. Step 6: Final answer
    x = 13,873.77

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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.