Home / 19,936.94-27,513.68-10,985.12

Finding the Fourth Proportional to 19,936.94, 27,513.68 and 10,985.12

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Solution

The fourth proportional to 19,936.94, 27,513.68 and 10,985.12 is: 15,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.94 : 27,513.68 = 10,985.12 : x
  2. Step 2: Convert to fraction form
    19,936.94/27,513.68 = 10,985.12/x
  3. Step 3: Cross multiply
    19,936.94x = 27,513.68 × 10,985.12
  4. Step 4: Simplify right side
    19,936.94x = 302,240,987.12
  5. Step 5: Solve for x
    x = 302,240,987.12/19,936.94
  6. Step 6: Final answer
    x = 15,159.85

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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.