Home / 19,935.36-27,511-10,982.90

Finding the Fourth Proportional to 19,935.36, 27,511 and 10,982.90

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Solution

The fourth proportional to 19,935.36, 27,511 and 10,982.90 is: 15,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.36 : 27,511 = 10,982.90 : x
  2. Step 2: Convert to fraction form
    19,935.36/27,511 = 10,982.90/x
  3. Step 3: Cross multiply
    19,935.36x = 27,511 × 10,982.90
  4. Step 4: Simplify right side
    19,935.36x = 302,150,561.90
  5. Step 5: Solve for x
    x = 302,150,561.90/19,935.36
  6. Step 6: Final answer
    x = 15,156.51

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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.