Home / 21,062.92-31,579.74-10,667.56

Finding the Fourth Proportional to 21,062.92, 31,579.74 and 10,667.56

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Solution

The fourth proportional to 21,062.92, 31,579.74 and 10,667.56 is: 15,993.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.92 : 31,579.74 = 10,667.56 : x
  2. Step 2: Convert to fraction form
    21,062.92/31,579.74 = 10,667.56/x
  3. Step 3: Cross multiply
    21,062.92x = 31,579.74 × 10,667.56
  4. Step 4: Simplify right side
    21,062.92x = 336,878,771.23
  5. Step 5: Solve for x
    x = 336,878,771.23/21,062.92
  6. Step 6: Final answer
    x = 15,993.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.