Home / 50,011.94-75,018.01-20,429.80

Finding the Fourth Proportional to 50,011.94, 75,018.01 and 20,429.80

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Solution

The fourth proportional to 50,011.94, 75,018.01 and 20,429.80 is: 30,644.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,011.94 : 75,018.01 = 20,429.80 : x
  2. Step 2: Convert to fraction form
    50,011.94/75,018.01 = 20,429.80/x
  3. Step 3: Cross multiply
    50,011.94x = 75,018.01 × 20,429.80
  4. Step 4: Simplify right side
    50,011.94x = 1,532,602,940.70
  5. Step 5: Solve for x
    x = 1,532,602,940.70/50,011.94
  6. Step 6: Final answer
    x = 30,644.74

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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.