Home / 20,130.36-30,059.97-16,439.91

Finding the Fourth Proportional to 20,130.36, 30,059.97 and 16,439.91

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Solution

The fourth proportional to 20,130.36, 30,059.97 and 16,439.91 is: 24,549.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.36 : 30,059.97 = 16,439.91 : x
  2. Step 2: Convert to fraction form
    20,130.36/30,059.97 = 16,439.91/x
  3. Step 3: Cross multiply
    20,130.36x = 30,059.97 × 16,439.91
  4. Step 4: Simplify right side
    20,130.36x = 494,183,201.40
  5. Step 5: Solve for x
    x = 494,183,201.40/20,130.36
  6. Step 6: Final answer
    x = 24,549.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.