Home / 30,540.06-45,821.43-9,765.18

Finding the Fourth Proportional to 30,540.06, 45,821.43 and 9,765.18

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Solution

The fourth proportional to 30,540.06, 45,821.43 and 9,765.18 is: 14,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540.06 : 45,821.43 = 9,765.18 : x
  2. Step 2: Convert to fraction form
    30,540.06/45,821.43 = 9,765.18/x
  3. Step 3: Cross multiply
    30,540.06x = 45,821.43 × 9,765.18
  4. Step 4: Simplify right side
    30,540.06x = 447,454,511.81
  5. Step 5: Solve for x
    x = 447,454,511.81/30,540.06
  6. Step 6: Final answer
    x = 14,651.40

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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.