Home / 20,363.42-30,503.36-12,018.18

Finding the Fourth Proportional to 20,363.42, 30,503.36 and 12,018.18

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Solution

The fourth proportional to 20,363.42, 30,503.36 and 12,018.18 is: 18,002.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.42 : 30,503.36 = 12,018.18 : x
  2. Step 2: Convert to fraction form
    20,363.42/30,503.36 = 12,018.18/x
  3. Step 3: Cross multiply
    20,363.42x = 30,503.36 × 12,018.18
  4. Step 4: Simplify right side
    20,363.42x = 366,594,871.08
  5. Step 5: Solve for x
    x = 366,594,871.08/20,363.42
  6. Step 6: Final answer
    x = 18,002.62

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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.