Home / 20,483.04-28,273.68-12,099

Finding the Fourth Proportional to 20,483.04, 28,273.68 and 12,099

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Solution

The fourth proportional to 20,483.04, 28,273.68 and 12,099 is: 16,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.04 : 28,273.68 = 12,099 : x
  2. Step 2: Convert to fraction form
    20,483.04/28,273.68 = 12,099/x
  3. Step 3: Cross multiply
    20,483.04x = 28,273.68 × 12,099
  4. Step 4: Simplify right side
    20,483.04x = 342,083,254.32
  5. Step 5: Solve for x
    x = 342,083,254.32/20,483.04
  6. Step 6: Final answer
    x = 16,700.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.