Home / 20,045.32-30,059.10-10,683.60

Finding the Fourth Proportional to 20,045.32, 30,059.10 and 10,683.60

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Solution

The fourth proportional to 20,045.32, 30,059.10 and 10,683.60 is: 16,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.32 : 30,059.10 = 10,683.60 : x
  2. Step 2: Convert to fraction form
    20,045.32/30,059.10 = 10,683.60/x
  3. Step 3: Cross multiply
    20,045.32x = 30,059.10 × 10,683.60
  4. Step 4: Simplify right side
    20,045.32x = 321,139,197.05
  5. Step 5: Solve for x
    x = 321,139,197.05/20,045.32
  6. Step 6: Final answer
    x = 16,020.66

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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.