Home / 20,157.07-30,235.68-6,117.21

Finding the Fourth Proportional to 20,157.07, 30,235.68 and 6,117.21

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Solution

The fourth proportional to 20,157.07, 30,235.68 and 6,117.21 is: 9,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.07 : 30,235.68 = 6,117.21 : x
  2. Step 2: Convert to fraction form
    20,157.07/30,235.68 = 6,117.21/x
  3. Step 3: Cross multiply
    20,157.07x = 30,235.68 × 6,117.21
  4. Step 4: Simplify right side
    20,157.07x = 184,957,973.47
  5. Step 5: Solve for x
    x = 184,957,973.47/20,157.07
  6. Step 6: Final answer
    x = 9,175.84

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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.