Home / 30,419.11-41,974.22-16,988.65

Finding the Fourth Proportional to 30,419.11, 41,974.22 and 16,988.65

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Solution

The fourth proportional to 30,419.11, 41,974.22 and 16,988.65 is: 23,442.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,419.11 : 41,974.22 = 16,988.65 : x
  2. Step 2: Convert to fraction form
    30,419.11/41,974.22 = 16,988.65/x
  3. Step 3: Cross multiply
    30,419.11x = 41,974.22 × 16,988.65
  4. Step 4: Simplify right side
    30,419.11x = 713,085,142.72
  5. Step 5: Solve for x
    x = 713,085,142.72/30,419.11
  6. Step 6: Final answer
    x = 23,442.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.