Home / 50,010.94-75,016.51-20,428.80

Finding the Fourth Proportional to 50,010.94, 75,016.51 and 20,428.80

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Solution

The fourth proportional to 50,010.94, 75,016.51 and 20,428.80 is: 30,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,010.94 : 75,016.51 = 20,428.80 : x
  2. Step 2: Convert to fraction form
    50,010.94/75,016.51 = 20,428.80/x
  3. Step 3: Cross multiply
    50,010.94x = 75,016.51 × 20,428.80
  4. Step 4: Simplify right side
    50,010.94x = 1,532,497,279.49
  5. Step 5: Solve for x
    x = 1,532,497,279.49/50,010.94
  6. Step 6: Final answer
    x = 30,643.24

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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.