Home / 20,181.80-30,267.30-7,032.80

Finding the Fourth Proportional to 20,181.80, 30,267.30 and 7,032.80

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Solution

The fourth proportional to 20,181.80, 30,267.30 and 7,032.80 is: 10,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.80 : 30,267.30 = 7,032.80 : x
  2. Step 2: Convert to fraction form
    20,181.80/30,267.30 = 7,032.80/x
  3. Step 3: Cross multiply
    20,181.80x = 30,267.30 × 7,032.80
  4. Step 4: Simplify right side
    20,181.80x = 212,863,867.44
  5. Step 5: Solve for x
    x = 212,863,867.44/20,181.80
  6. Step 6: Final answer
    x = 10,547.32

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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.