Home / 13,402.02-20,103.90-3,541.05

Finding the Fourth Proportional to 13,402.02, 20,103.90 and 3,541.05

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Solution

The fourth proportional to 13,402.02, 20,103.90 and 3,541.05 is: 5,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.02 : 20,103.90 = 3,541.05 : x
  2. Step 2: Convert to fraction form
    13,402.02/20,103.90 = 3,541.05/x
  3. Step 3: Cross multiply
    13,402.02x = 20,103.90 × 3,541.05
  4. Step 4: Simplify right side
    13,402.02x = 71,188,915.10
  5. Step 5: Solve for x
    x = 71,188,915.10/13,402.02
  6. Step 6: Final answer
    x = 5,311.80

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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.