Home / 20,860.08-31,289.84-5,065.22

Finding the Fourth Proportional to 20,860.08, 31,289.84 and 5,065.22

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Solution

The fourth proportional to 20,860.08, 31,289.84 and 5,065.22 is: 7,597.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.08 : 31,289.84 = 5,065.22 : x
  2. Step 2: Convert to fraction form
    20,860.08/31,289.84 = 5,065.22/x
  3. Step 3: Cross multiply
    20,860.08x = 31,289.84 × 5,065.22
  4. Step 4: Simplify right side
    20,860.08x = 158,489,741.59
  5. Step 5: Solve for x
    x = 158,489,741.59/20,860.08
  6. Step 6: Final answer
    x = 7,597.75

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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.