Home / 19,723.70-27,219.31-10,771.65

Finding the Fourth Proportional to 19,723.70, 27,219.31 and 10,771.65

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Solution

The fourth proportional to 19,723.70, 27,219.31 and 10,771.65 is: 14,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723.70 : 27,219.31 = 10,771.65 : x
  2. Step 2: Convert to fraction form
    19,723.70/27,219.31 = 10,771.65/x
  3. Step 3: Cross multiply
    19,723.70x = 27,219.31 × 10,771.65
  4. Step 4: Simplify right side
    19,723.70x = 293,196,853.63
  5. Step 5: Solve for x
    x = 293,196,853.63/19,723.70
  6. Step 6: Final answer
    x = 14,865.20

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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.