Home / 50,018.31-75,037.59-20,438.53

Finding the Fourth Proportional to 50,018.31, 75,037.59 and 20,438.53

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Solution

The fourth proportional to 50,018.31, 75,037.59 and 20,438.53 is: 30,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,018.31 : 75,037.59 = 20,438.53 : x
  2. Step 2: Convert to fraction form
    50,018.31/75,037.59 = 20,438.53/x
  3. Step 3: Cross multiply
    50,018.31x = 75,037.59 × 20,438.53
  4. Step 4: Simplify right side
    50,018.31x = 1,533,657,846.75
  5. Step 5: Solve for x
    x = 1,533,657,846.75/50,018.31
  6. Step 6: Final answer
    x = 30,661.93

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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.