Home / 20,085.47-30,131.62-6,934.76

Finding the Fourth Proportional to 20,085.47, 30,131.62 and 6,934.76

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Solution

The fourth proportional to 20,085.47, 30,131.62 and 6,934.76 is: 10,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.47 : 30,131.62 = 6,934.76 : x
  2. Step 2: Convert to fraction form
    20,085.47/30,131.62 = 6,934.76/x
  3. Step 3: Cross multiply
    20,085.47x = 30,131.62 × 6,934.76
  4. Step 4: Simplify right side
    20,085.47x = 208,955,518.44
  5. Step 5: Solve for x
    x = 208,955,518.44/20,085.47
  6. Step 6: Final answer
    x = 10,403.32

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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.