Home / 19,810.49-27,338.83-10,857.92

Finding the Fourth Proportional to 19,810.49, 27,338.83 and 10,857.92

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Solution

The fourth proportional to 19,810.49, 27,338.83 and 10,857.92 is: 14,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.49 : 27,338.83 = 10,857.92 : x
  2. Step 2: Convert to fraction form
    19,810.49/27,338.83 = 10,857.92/x
  3. Step 3: Cross multiply
    19,810.49x = 27,338.83 × 10,857.92
  4. Step 4: Simplify right side
    19,810.49x = 296,842,880.05
  5. Step 5: Solve for x
    x = 296,842,880.05/19,810.49
  6. Step 6: Final answer
    x = 14,984.13

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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.