Home / 27,667.70-38,183.94-15,731.01

Finding the Fourth Proportional to 27,667.70, 38,183.94 and 15,731.01

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Solution

The fourth proportional to 27,667.70, 38,183.94 and 15,731.01 is: 21,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,667.70 : 38,183.94 = 15,731.01 : x
  2. Step 2: Convert to fraction form
    27,667.70/38,183.94 = 15,731.01/x
  3. Step 3: Cross multiply
    27,667.70x = 38,183.94 × 15,731.01
  4. Step 4: Simplify right side
    27,667.70x = 600,671,941.98
  5. Step 5: Solve for x
    x = 600,671,941.98/27,667.70
  6. Step 6: Final answer
    x = 21,710.23

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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.