Home / 20,259.18-30,388.41-6,408.18

Finding the Fourth Proportional to 20,259.18, 30,388.41 and 6,408.18

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Solution

The fourth proportional to 20,259.18, 30,388.41 and 6,408.18 is: 9,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.18 : 30,388.41 = 6,408.18 : x
  2. Step 2: Convert to fraction form
    20,259.18/30,388.41 = 6,408.18/x
  3. Step 3: Cross multiply
    20,259.18x = 30,388.41 × 6,408.18
  4. Step 4: Simplify right side
    20,259.18x = 194,734,401.19
  5. Step 5: Solve for x
    x = 194,734,401.19/20,259.18
  6. Step 6: Final answer
    x = 9,612.16

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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.