Home / 30,940.25-42,698.57-17,511.35

Finding the Fourth Proportional to 30,940.25, 42,698.57 and 17,511.35

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Solution

The fourth proportional to 30,940.25, 42,698.57 and 17,511.35 is: 24,166.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.25 : 42,698.57 = 17,511.35 : x
  2. Step 2: Convert to fraction form
    30,940.25/42,698.57 = 17,511.35/x
  3. Step 3: Cross multiply
    30,940.25x = 42,698.57 × 17,511.35
  4. Step 4: Simplify right side
    30,940.25x = 747,709,302.72
  5. Step 5: Solve for x
    x = 747,709,302.72/30,940.25
  6. Step 6: Final answer
    x = 24,166.24

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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.