Home / 19,725.11-27,220.83-10,772.72

Finding the Fourth Proportional to 19,725.11, 27,220.83 and 10,772.72

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Solution

The fourth proportional to 19,725.11, 27,220.83 and 10,772.72 is: 14,866.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.11 : 27,220.83 = 10,772.72 : x
  2. Step 2: Convert to fraction form
    19,725.11/27,220.83 = 10,772.72/x
  3. Step 3: Cross multiply
    19,725.11x = 27,220.83 × 10,772.72
  4. Step 4: Simplify right side
    19,725.11x = 293,242,379.76
  5. Step 5: Solve for x
    x = 293,242,379.76/19,725.11
  6. Step 6: Final answer
    x = 14,866.45

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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.