Home / 30,940.23-42,690.19-17,511.48

Finding the Fourth Proportional to 30,940.23, 42,690.19 and 17,511.48

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Solution

The fourth proportional to 30,940.23, 42,690.19 and 17,511.48 is: 24,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.23 : 42,690.19 = 17,511.48 : x
  2. Step 2: Convert to fraction form
    30,940.23/42,690.19 = 17,511.48/x
  3. Step 3: Cross multiply
    30,940.23x = 42,690.19 × 17,511.48
  4. Step 4: Simplify right side
    30,940.23x = 747,568,430.27
  5. Step 5: Solve for x
    x = 747,568,430.27/30,940.23
  6. Step 6: Final answer
    x = 24,161.70

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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.