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Finding the Fourth Proportional to 20,020.68, 30,038.04 and 6,169.68

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Solution

The fourth proportional to 20,020.68, 30,038.04 and 6,169.68 is: 9,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.68 : 30,038.04 = 6,169.68 : x
  2. Step 2: Convert to fraction form
    20,020.68/30,038.04 = 6,169.68/x
  3. Step 3: Cross multiply
    20,020.68x = 30,038.04 × 6,169.68
  4. Step 4: Simplify right side
    20,020.68x = 185,325,094.63
  5. Step 5: Solve for x
    x = 185,325,094.63/20,020.68
  6. Step 6: Final answer
    x = 9,256.68

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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.