Home / 19,571.66-27,013.70-12,019.79

Finding the Fourth Proportional to 19,571.66, 27,013.70 and 12,019.79

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Solution

The fourth proportional to 19,571.66, 27,013.70 and 12,019.79 is: 16,590.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.66 : 27,013.70 = 12,019.79 : x
  2. Step 2: Convert to fraction form
    19,571.66/27,013.70 = 12,019.79/x
  3. Step 3: Cross multiply
    19,571.66x = 27,013.70 × 12,019.79
  4. Step 4: Simplify right side
    19,571.66x = 324,698,941.02
  5. Step 5: Solve for x
    x = 324,698,941.02/19,571.66
  6. Step 6: Final answer
    x = 16,590.26

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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.