Home / 44,145.99-66,130.21-20,420.23

Finding the Fourth Proportional to 44,145.99, 66,130.21 and 20,420.23

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Solution

The fourth proportional to 44,145.99, 66,130.21 and 20,420.23 is: 30,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,145.99 : 66,130.21 = 20,420.23 : x
  2. Step 2: Convert to fraction form
    44,145.99/66,130.21 = 20,420.23/x
  3. Step 3: Cross multiply
    44,145.99x = 66,130.21 × 20,420.23
  4. Step 4: Simplify right side
    44,145.99x = 1,350,394,098.15
  5. Step 5: Solve for x
    x = 1,350,394,098.15/44,145.99
  6. Step 6: Final answer
    x = 30,589.28

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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.