Home / 20,200.88-30,307.08-6,876.80

Finding the Fourth Proportional to 20,200.88, 30,307.08 and 6,876.80

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Solution

The fourth proportional to 20,200.88, 30,307.08 and 6,876.80 is: 10,317.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.88 : 30,307.08 = 6,876.80 : x
  2. Step 2: Convert to fraction form
    20,200.88/30,307.08 = 6,876.80/x
  3. Step 3: Cross multiply
    20,200.88x = 30,307.08 × 6,876.80
  4. Step 4: Simplify right side
    20,200.88x = 208,415,727.74
  5. Step 5: Solve for x
    x = 208,415,727.74/20,200.88
  6. Step 6: Final answer
    x = 10,317.16

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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.