Home / 20,254.48-30,360.87-7,771.18

Finding the Fourth Proportional to 20,254.48, 30,360.87 and 7,771.18

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Solution

The fourth proportional to 20,254.48, 30,360.87 and 7,771.18 is: 11,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.48 : 30,360.87 = 7,771.18 : x
  2. Step 2: Convert to fraction form
    20,254.48/30,360.87 = 7,771.18/x
  3. Step 3: Cross multiply
    20,254.48x = 30,360.87 × 7,771.18
  4. Step 4: Simplify right side
    20,254.48x = 235,939,785.73
  5. Step 5: Solve for x
    x = 235,939,785.73/20,254.48
  6. Step 6: Final answer
    x = 11,648.77

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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.