Home / 30,680.11-46,020.13-9,903.61

Finding the Fourth Proportional to 30,680.11, 46,020.13 and 9,903.61

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Solution

The fourth proportional to 30,680.11, 46,020.13 and 9,903.61 is: 14,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.11 : 46,020.13 = 9,903.61 : x
  2. Step 2: Convert to fraction form
    30,680.11/46,020.13 = 9,903.61/x
  3. Step 3: Cross multiply
    30,680.11x = 46,020.13 × 9,903.61
  4. Step 4: Simplify right side
    30,680.11x = 455,765,419.67
  5. Step 5: Solve for x
    x = 455,765,419.67/30,680.11
  6. Step 6: Final answer
    x = 14,855.40

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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.