Home / 20,749.27-31,119.64-5,954.89

Finding the Fourth Proportional to 20,749.27, 31,119.64 and 5,954.89

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Solution

The fourth proportional to 20,749.27, 31,119.64 and 5,954.89 is: 8,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.27 : 31,119.64 = 5,954.89 : x
  2. Step 2: Convert to fraction form
    20,749.27/31,119.64 = 5,954.89/x
  3. Step 3: Cross multiply
    20,749.27x = 31,119.64 × 5,954.89
  4. Step 4: Simplify right side
    20,749.27x = 185,314,003.27
  5. Step 5: Solve for x
    x = 185,314,003.27/20,749.27
  6. Step 6: Final answer
    x = 8,931.11

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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.