Home / 30,990.20-46,484.89-7,616.84

Finding the Fourth Proportional to 30,990.20, 46,484.89 and 7,616.84

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Solution

The fourth proportional to 30,990.20, 46,484.89 and 7,616.84 is: 11,425.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,990.20 : 46,484.89 = 7,616.84 : x
  2. Step 2: Convert to fraction form
    30,990.20/46,484.89 = 7,616.84/x
  3. Step 3: Cross multiply
    30,990.20x = 46,484.89 × 7,616.84
  4. Step 4: Simplify right side
    30,990.20x = 354,067,718.08
  5. Step 5: Solve for x
    x = 354,067,718.08/30,990.20
  6. Step 6: Final answer
    x = 11,425.15

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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.