Home / 19,985.14-29,969.16-6,838.84

Finding the Fourth Proportional to 19,985.14, 29,969.16 and 6,838.84

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Solution

The fourth proportional to 19,985.14, 29,969.16 and 6,838.84 is: 10,255.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.14 : 29,969.16 = 6,838.84 : x
  2. Step 2: Convert to fraction form
    19,985.14/29,969.16 = 6,838.84/x
  3. Step 3: Cross multiply
    19,985.14x = 29,969.16 × 6,838.84
  4. Step 4: Simplify right side
    19,985.14x = 204,954,290.17
  5. Step 5: Solve for x
    x = 204,954,290.17/19,985.14
  6. Step 6: Final answer
    x = 10,255.33

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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.