Home / 19,994.90-30,002.70-8,157.35

Finding the Fourth Proportional to 19,994.90, 30,002.70 and 8,157.35

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Solution

The fourth proportional to 19,994.90, 30,002.70 and 8,157.35 is: 12,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.90 : 30,002.70 = 8,157.35 : x
  2. Step 2: Convert to fraction form
    19,994.90/30,002.70 = 8,157.35/x
  3. Step 3: Cross multiply
    19,994.90x = 30,002.70 × 8,157.35
  4. Step 4: Simplify right side
    19,994.90x = 244,742,524.85
  5. Step 5: Solve for x
    x = 244,742,524.85/19,994.90
  6. Step 6: Final answer
    x = 12,240.25

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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.