Home / 50,021.27-75,004.21-20,459.87

Finding the Fourth Proportional to 50,021.27, 75,004.21 and 20,459.87

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Solution

The fourth proportional to 50,021.27, 75,004.21 and 20,459.87 is: 30,678.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,021.27 : 75,004.21 = 20,459.87 : x
  2. Step 2: Convert to fraction form
    50,021.27/75,004.21 = 20,459.87/x
  3. Step 3: Cross multiply
    50,021.27x = 75,004.21 × 20,459.87
  4. Step 4: Simplify right side
    50,021.27x = 1,534,575,959.88
  5. Step 5: Solve for x
    x = 1,534,575,959.88/50,021.27
  6. Step 6: Final answer
    x = 30,678.47

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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.