Home / 20,356.88-30,539.70-6,316.64

Finding the Fourth Proportional to 20,356.88, 30,539.70 and 6,316.64

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Solution

The fourth proportional to 20,356.88, 30,539.70 and 6,316.64 is: 9,476.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.88 : 30,539.70 = 6,316.64 : x
  2. Step 2: Convert to fraction form
    20,356.88/30,539.70 = 6,316.64/x
  3. Step 3: Cross multiply
    20,356.88x = 30,539.70 × 6,316.64
  4. Step 4: Simplify right side
    20,356.88x = 192,908,137.91
  5. Step 5: Solve for x
    x = 192,908,137.91/20,356.88
  6. Step 6: Final answer
    x = 9,476.31

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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.