Home / 20,466.85-30,708.48-6,429.05

Finding the Fourth Proportional to 20,466.85, 30,708.48 and 6,429.05

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Solution

The fourth proportional to 20,466.85, 30,708.48 and 6,429.05 is: 9,646.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.85 : 30,708.48 = 6,429.05 : x
  2. Step 2: Convert to fraction form
    20,466.85/30,708.48 = 6,429.05/x
  3. Step 3: Cross multiply
    20,466.85x = 30,708.48 × 6,429.05
  4. Step 4: Simplify right side
    20,466.85x = 197,426,353.34
  5. Step 5: Solve for x
    x = 197,426,353.34/20,466.85
  6. Step 6: Final answer
    x = 9,646.15

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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.