Home / 19,935-27,511.55-10,982.51

Finding the Fourth Proportional to 19,935, 27,511.55 and 10,982.51

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Solution

The fourth proportional to 19,935, 27,511.55 and 10,982.51 is: 15,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935 : 27,511.55 = 10,982.51 : x
  2. Step 2: Convert to fraction form
    19,935/27,511.55 = 10,982.51/x
  3. Step 3: Cross multiply
    19,935x = 27,511.55 × 10,982.51
  4. Step 4: Simplify right side
    19,935x = 302,145,872.99
  5. Step 5: Solve for x
    x = 302,145,872.99/19,935
  6. Step 6: Final answer
    x = 15,156.55

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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.