Home / 19,806.84-27,333.62-10,855.20

Finding the Fourth Proportional to 19,806.84, 27,333.62 and 10,855.20

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Solution

The fourth proportional to 19,806.84, 27,333.62 and 10,855.20 is: 14,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,806.84 : 27,333.62 = 10,855.20 : x
  2. Step 2: Convert to fraction form
    19,806.84/27,333.62 = 10,855.20/x
  3. Step 3: Cross multiply
    19,806.84x = 27,333.62 × 10,855.20
  4. Step 4: Simplify right side
    19,806.84x = 296,711,911.82
  5. Step 5: Solve for x
    x = 296,711,911.82/19,806.84
  6. Step 6: Final answer
    x = 14,980.28

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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.