Home / 19,723.23-27,207.10-12,907.79

Finding the Fourth Proportional to 19,723.23, 27,207.10 and 12,907.79

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Solution

The fourth proportional to 19,723.23, 27,207.10 and 12,907.79 is: 17,805.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723.23 : 27,207.10 = 12,907.79 : x
  2. Step 2: Convert to fraction form
    19,723.23/27,207.10 = 12,907.79/x
  3. Step 3: Cross multiply
    19,723.23x = 27,207.10 × 12,907.79
  4. Step 4: Simplify right side
    19,723.23x = 351,183,533.31
  5. Step 5: Solve for x
    x = 351,183,533.31/19,723.23
  6. Step 6: Final answer
    x = 17,805.58

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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.