Home / 35,638.20-53,462.10-12,271.80

Finding the Fourth Proportional to 35,638.20, 53,462.10 and 12,271.80

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Solution

The fourth proportional to 35,638.20, 53,462.10 and 12,271.80 is: 18,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,638.20 : 53,462.10 = 12,271.80 : x
  2. Step 2: Convert to fraction form
    35,638.20/53,462.10 = 12,271.80/x
  3. Step 3: Cross multiply
    35,638.20x = 53,462.10 × 12,271.80
  4. Step 4: Simplify right side
    35,638.20x = 656,076,198.78
  5. Step 5: Solve for x
    x = 656,076,198.78/35,638.20
  6. Step 6: Final answer
    x = 18,409.35

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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.