Home / 20,495.58-30,744.45-6,643.50

Finding the Fourth Proportional to 20,495.58, 30,744.45 and 6,643.50

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Solution

The fourth proportional to 20,495.58, 30,744.45 and 6,643.50 is: 9,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.58 : 30,744.45 = 6,643.50 : x
  2. Step 2: Convert to fraction form
    20,495.58/30,744.45 = 6,643.50/x
  3. Step 3: Cross multiply
    20,495.58x = 30,744.45 × 6,643.50
  4. Step 4: Simplify right side
    20,495.58x = 204,250,753.58
  5. Step 5: Solve for x
    x = 204,250,753.58/20,495.58
  6. Step 6: Final answer
    x = 9,965.60

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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.