Home / 19,723.80-29,607.30-12,336.60

Finding the Fourth Proportional to 19,723.80, 29,607.30 and 12,336.60

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Solution

The fourth proportional to 19,723.80, 29,607.30 and 12,336.60 is: 18,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723.80 : 29,607.30 = 12,336.60 : x
  2. Step 2: Convert to fraction form
    19,723.80/29,607.30 = 12,336.60/x
  3. Step 3: Cross multiply
    19,723.80x = 29,607.30 × 12,336.60
  4. Step 4: Simplify right side
    19,723.80x = 365,253,417.18
  5. Step 5: Solve for x
    x = 365,253,417.18/19,723.80
  6. Step 6: Final answer
    x = 18,518.41

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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.