Home / 19,390.30-29,085.55-6,910.80

Finding the Fourth Proportional to 19,390.30, 29,085.55 and 6,910.80

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Solution

The fourth proportional to 19,390.30, 29,085.55 and 6,910.80 is: 10,366.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.30 : 29,085.55 = 6,910.80 : x
  2. Step 2: Convert to fraction form
    19,390.30/29,085.55 = 6,910.80/x
  3. Step 3: Cross multiply
    19,390.30x = 29,085.55 × 6,910.80
  4. Step 4: Simplify right side
    19,390.30x = 201,004,418.94
  5. Step 5: Solve for x
    x = 201,004,418.94/19,390.30
  6. Step 6: Final answer
    x = 10,366.24

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1.5x scale

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.