Home / 22,219.20-30,662.93-12,148.07

Finding the Fourth Proportional to 22,219.20, 30,662.93 and 12,148.07

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Solution

The fourth proportional to 22,219.20, 30,662.93 and 12,148.07 is: 16,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,219.20 : 30,662.93 = 12,148.07 : x
  2. Step 2: Convert to fraction form
    22,219.20/30,662.93 = 12,148.07/x
  3. Step 3: Cross multiply
    22,219.20x = 30,662.93 × 12,148.07
  4. Step 4: Simplify right side
    22,219.20x = 372,495,297.10
  5. Step 5: Solve for x
    x = 372,495,297.10/22,219.20
  6. Step 6: Final answer
    x = 16,764.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.