Home / 19,379.61-29,006.52-12,722.01

Finding the Fourth Proportional to 19,379.61, 29,006.52 and 12,722.01

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Solution

The fourth proportional to 19,379.61, 29,006.52 and 12,722.01 is: 19,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.61 : 29,006.52 = 12,722.01 : x
  2. Step 2: Convert to fraction form
    19,379.61/29,006.52 = 12,722.01/x
  3. Step 3: Cross multiply
    19,379.61x = 29,006.52 × 12,722.01
  4. Step 4: Simplify right side
    19,379.61x = 369,021,237.51
  5. Step 5: Solve for x
    x = 369,021,237.51/19,379.61
  6. Step 6: Final answer
    x = 19,041.73

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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.