Home / 20,645.61-30,957.93-8,794.80

Finding the Fourth Proportional to 20,645.61, 30,957.93 and 8,794.80

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Solution

The fourth proportional to 20,645.61, 30,957.93 and 8,794.80 is: 13,187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.61 : 30,957.93 = 8,794.80 : x
  2. Step 2: Convert to fraction form
    20,645.61/30,957.93 = 8,794.80/x
  3. Step 3: Cross multiply
    20,645.61x = 30,957.93 × 8,794.80
  4. Step 4: Simplify right side
    20,645.61x = 272,268,802.76
  5. Step 5: Solve for x
    x = 272,268,802.76/20,645.61
  6. Step 6: Final answer
    x = 13,187.73

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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.