Home / 20,025.50-30,038.24-6,877.78

Finding the Fourth Proportional to 20,025.50, 30,038.24 and 6,877.78

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Solution

The fourth proportional to 20,025.50, 30,038.24 and 6,877.78 is: 10,316.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.50 : 30,038.24 = 6,877.78 : x
  2. Step 2: Convert to fraction form
    20,025.50/30,038.24 = 6,877.78/x
  3. Step 3: Cross multiply
    20,025.50x = 30,038.24 × 6,877.78
  4. Step 4: Simplify right side
    20,025.50x = 206,596,348.41
  5. Step 5: Solve for x
    x = 206,596,348.41/20,025.50
  6. Step 6: Final answer
    x = 10,316.67

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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.