Home / 20,749.95-31,126.32-5,958.54

Finding the Fourth Proportional to 20,749.95, 31,126.32 and 5,958.54

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Solution

The fourth proportional to 20,749.95, 31,126.32 and 5,958.54 is: 8,938.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.95 : 31,126.32 = 5,958.54 : x
  2. Step 2: Convert to fraction form
    20,749.95/31,126.32 = 5,958.54/x
  3. Step 3: Cross multiply
    20,749.95x = 31,126.32 × 5,958.54
  4. Step 4: Simplify right side
    20,749.95x = 185,467,422.77
  5. Step 5: Solve for x
    x = 185,467,422.77/20,749.95
  6. Step 6: Final answer
    x = 8,938.21

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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.