Home / 20,559.74-30,852.30-8,077.57

Finding the Fourth Proportional to 20,559.74, 30,852.30 and 8,077.57

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Solution

The fourth proportional to 20,559.74, 30,852.30 and 8,077.57 is: 12,121.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.74 : 30,852.30 = 8,077.57 : x
  2. Step 2: Convert to fraction form
    20,559.74/30,852.30 = 8,077.57/x
  3. Step 3: Cross multiply
    20,559.74x = 30,852.30 × 8,077.57
  4. Step 4: Simplify right side
    20,559.74x = 249,211,612.91
  5. Step 5: Solve for x
    x = 249,211,612.91/20,559.74
  6. Step 6: Final answer
    x = 12,121.34

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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.