Home / 30,340.40-41,865-16,907.36

Finding the Fourth Proportional to 30,340.40, 41,865 and 16,907.36

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Solution

The fourth proportional to 30,340.40, 41,865 and 16,907.36 is: 23,329.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.40 : 41,865 = 16,907.36 : x
  2. Step 2: Convert to fraction form
    30,340.40/41,865 = 16,907.36/x
  3. Step 3: Cross multiply
    30,340.40x = 41,865 × 16,907.36
  4. Step 4: Simplify right side
    30,340.40x = 707,826,626.40
  5. Step 5: Solve for x
    x = 707,826,626.40/30,340.40
  6. Step 6: Final answer
    x = 23,329.51

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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.