Home / 20,284.96-30,390.90-19,065.04

Finding the Fourth Proportional to 20,284.96, 30,390.90 and 19,065.04

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Solution

The fourth proportional to 20,284.96, 30,390.90 and 19,065.04 is: 28,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.96 : 30,390.90 = 19,065.04 : x
  2. Step 2: Convert to fraction form
    20,284.96/30,390.90 = 19,065.04/x
  3. Step 3: Cross multiply
    20,284.96x = 30,390.90 × 19,065.04
  4. Step 4: Simplify right side
    20,284.96x = 579,403,724.14
  5. Step 5: Solve for x
    x = 579,403,724.14/20,284.96
  6. Step 6: Final answer
    x = 28,563.22

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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.