Home / 20,209.02-30,290.86-6,869.56

Finding the Fourth Proportional to 20,209.02, 30,290.86 and 6,869.56

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Solution

The fourth proportional to 20,209.02, 30,290.86 and 6,869.56 is: 10,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.02 : 30,290.86 = 6,869.56 : x
  2. Step 2: Convert to fraction form
    20,209.02/30,290.86 = 6,869.56/x
  3. Step 3: Cross multiply
    20,209.02x = 30,290.86 × 6,869.56
  4. Step 4: Simplify right side
    20,209.02x = 208,084,880.22
  5. Step 5: Solve for x
    x = 208,084,880.22/20,209.02
  6. Step 6: Final answer
    x = 10,296.63

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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.