Home / 20,085.88-30,119.10-6,933.64

Finding the Fourth Proportional to 20,085.88, 30,119.10 and 6,933.64

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Solution

The fourth proportional to 20,085.88, 30,119.10 and 6,933.64 is: 10,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.88 : 30,119.10 = 6,933.64 : x
  2. Step 2: Convert to fraction form
    20,085.88/30,119.10 = 6,933.64/x
  3. Step 3: Cross multiply
    20,085.88x = 30,119.10 × 6,933.64
  4. Step 4: Simplify right side
    20,085.88x = 208,834,996.52
  5. Step 5: Solve for x
    x = 208,834,996.52/20,085.88
  6. Step 6: Final answer
    x = 10,397.10

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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.