Home / 28,366.50-42,556.08-8,646.60

Finding the Fourth Proportional to 28,366.50, 42,556.08 and 8,646.60

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Solution

The fourth proportional to 28,366.50, 42,556.08 and 8,646.60 is: 12,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.50 : 42,556.08 = 8,646.60 : x
  2. Step 2: Convert to fraction form
    28,366.50/42,556.08 = 8,646.60/x
  3. Step 3: Cross multiply
    28,366.50x = 42,556.08 × 8,646.60
  4. Step 4: Simplify right side
    28,366.50x = 367,965,401.33
  5. Step 5: Solve for x
    x = 367,965,401.33/28,366.50
  6. Step 6: Final answer
    x = 12,971.83

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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.