Home / 20,749.26-31,119.62-5,954.90

Finding the Fourth Proportional to 20,749.26, 31,119.62 and 5,954.90

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Solution

The fourth proportional to 20,749.26, 31,119.62 and 5,954.90 is: 8,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.26 : 31,119.62 = 5,954.90 : x
  2. Step 2: Convert to fraction form
    20,749.26/31,119.62 = 5,954.90/x
  3. Step 3: Cross multiply
    20,749.26x = 31,119.62 × 5,954.90
  4. Step 4: Simplify right side
    20,749.26x = 185,314,225.14
  5. Step 5: Solve for x
    x = 185,314,225.14/20,749.26
  6. Step 6: Final answer
    x = 8,931.12

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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.