Home / 30,309.87-41,823.94-17,388.47

Finding the Fourth Proportional to 30,309.87, 41,823.94 and 17,388.47

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Solution

The fourth proportional to 30,309.87, 41,823.94 and 17,388.47 is: 23,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309.87 : 41,823.94 = 17,388.47 : x
  2. Step 2: Convert to fraction form
    30,309.87/41,823.94 = 17,388.47/x
  3. Step 3: Cross multiply
    30,309.87x = 41,823.94 × 17,388.47
  4. Step 4: Simplify right side
    30,309.87x = 727,254,239.03
  5. Step 5: Solve for x
    x = 727,254,239.03/30,309.87
  6. Step 6: Final answer
    x = 23,993.98

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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.