Home / 16,427.20-24,638.40-4,739.20

Finding the Fourth Proportional to 16,427.20, 24,638.40 and 4,739.20

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Solution

The fourth proportional to 16,427.20, 24,638.40 and 4,739.20 is: 7,108.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,427.20 : 24,638.40 = 4,739.20 : x
  2. Step 2: Convert to fraction form
    16,427.20/24,638.40 = 4,739.20/x
  3. Step 3: Cross multiply
    16,427.20x = 24,638.40 × 4,739.20
  4. Step 4: Simplify right side
    16,427.20x = 116,766,305.28
  5. Step 5: Solve for x
    x = 116,766,305.28/16,427.20
  6. Step 6: Final answer
    x = 7,108.11

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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.