Home / 20,936,633.98-28,888,284-12,233,123.23

Finding the Fourth Proportional to 20,936,633.98, 28,888,284 and 12,233,123.23

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Solution

The fourth proportional to 20,936,633.98, 28,888,284 and 12,233,123.23 is: 16,879,214.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936,633.98 : 28,888,284 = 12,233,123.23 : x
  2. Step 2: Convert to fraction form
    20,936,633.98/28,888,284 = 12,233,123.23/x
  3. Step 3: Cross multiply
    20,936,633.98x = 28,888,284 × 12,233,123.23
  4. Step 4: Simplify right side
    20,936,633.98x = 353,393,938,075,237.31
  5. Step 5: Solve for x
    x = 353,393,938,075,237.31/20,936,633.98
  6. Step 6: Final answer
    x = 16,879,214.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.