Home / 20,508.15-30,762.89-6,468.31

Finding the Fourth Proportional to 20,508.15, 30,762.89 and 6,468.31

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Solution

The fourth proportional to 20,508.15, 30,762.89 and 6,468.31 is: 9,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.15 : 30,762.89 = 6,468.31 : x
  2. Step 2: Convert to fraction form
    20,508.15/30,762.89 = 6,468.31/x
  3. Step 3: Cross multiply
    20,508.15x = 30,762.89 × 6,468.31
  4. Step 4: Simplify right side
    20,508.15x = 198,983,909.02
  5. Step 5: Solve for x
    x = 198,983,909.02/20,508.15
  6. Step 6: Final answer
    x = 9,702.67

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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.