Home / 19,725.81-27,220.41-10,771.49

Finding the Fourth Proportional to 19,725.81, 27,220.41 and 10,771.49

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Solution

The fourth proportional to 19,725.81, 27,220.41 and 10,771.49 is: 14,864.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.81 : 27,220.41 = 10,771.49 : x
  2. Step 2: Convert to fraction form
    19,725.81/27,220.41 = 10,771.49/x
  3. Step 3: Cross multiply
    19,725.81x = 27,220.41 × 10,771.49
  4. Step 4: Simplify right side
    19,725.81x = 293,204,374.11
  5. Step 5: Solve for x
    x = 293,204,374.11/19,725.81
  6. Step 6: Final answer
    x = 14,864.00

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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.