Home / 20,380.07-30,575.43-7,055.84

Finding the Fourth Proportional to 20,380.07, 30,575.43 and 7,055.84

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Solution

The fourth proportional to 20,380.07, 30,575.43 and 7,055.84 is: 10,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.07 : 30,575.43 = 7,055.84 : x
  2. Step 2: Convert to fraction form
    20,380.07/30,575.43 = 7,055.84/x
  3. Step 3: Cross multiply
    20,380.07x = 30,575.43 × 7,055.84
  4. Step 4: Simplify right side
    20,380.07x = 215,735,189.13
  5. Step 5: Solve for x
    x = 215,735,189.13/20,380.07
  6. Step 6: Final answer
    x = 10,585.60

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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.