Home / 21,330.34-31,993.35-5,749.54

Finding the Fourth Proportional to 21,330.34, 31,993.35 and 5,749.54

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Solution

The fourth proportional to 21,330.34, 31,993.35 and 5,749.54 is: 8,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.34 : 31,993.35 = 5,749.54 : x
  2. Step 2: Convert to fraction form
    21,330.34/31,993.35 = 5,749.54/x
  3. Step 3: Cross multiply
    21,330.34x = 31,993.35 × 5,749.54
  4. Step 4: Simplify right side
    21,330.34x = 183,947,045.56
  5. Step 5: Solve for x
    x = 183,947,045.56/21,330.34
  6. Step 6: Final answer
    x = 8,623.73

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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.