Home / 20,683.24-31,052.40-10,830.40

Finding the Fourth Proportional to 20,683.24, 31,052.40 and 10,830.40

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Solution

The fourth proportional to 20,683.24, 31,052.40 and 10,830.40 is: 16,260.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.24 : 31,052.40 = 10,830.40 : x
  2. Step 2: Convert to fraction form
    20,683.24/31,052.40 = 10,830.40/x
  3. Step 3: Cross multiply
    20,683.24x = 31,052.40 × 10,830.40
  4. Step 4: Simplify right side
    20,683.24x = 336,309,912.96
  5. Step 5: Solve for x
    x = 336,309,912.96/20,683.24
  6. Step 6: Final answer
    x = 16,260.02

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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.