Home / 50,025.52-75,038.28-20,438.20

Finding the Fourth Proportional to 50,025.52, 75,038.28 and 20,438.20

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Solution

The fourth proportional to 50,025.52, 75,038.28 and 20,438.20 is: 30,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,025.52 : 75,038.28 = 20,438.20 : x
  2. Step 2: Convert to fraction form
    50,025.52/75,038.28 = 20,438.20/x
  3. Step 3: Cross multiply
    50,025.52x = 75,038.28 × 20,438.20
  4. Step 4: Simplify right side
    50,025.52x = 1,533,647,374.30
  5. Step 5: Solve for x
    x = 1,533,647,374.30/50,025.52
  6. Step 6: Final answer
    x = 30,657.30

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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.