Home / 21,004,415.12-28,985,376.71-11,585,579.30

Finding the Fourth Proportional to 21,004,415.12, 28,985,376.71 and 11,585,579.30

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Solution

The fourth proportional to 21,004,415.12, 28,985,376.71 and 11,585,579.30 is: 15,987,704.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,415.12 : 28,985,376.71 = 11,585,579.30 : x
  2. Step 2: Convert to fraction form
    21,004,415.12/28,985,376.71 = 11,585,579.30/x
  3. Step 3: Cross multiply
    21,004,415.12x = 28,985,376.71 × 11,585,579.30
  4. Step 4: Simplify right side
    21,004,415.12x = 335,812,380,211,223.31
  5. Step 5: Solve for x
    x = 335,812,380,211,223.31/21,004,415.12
  6. Step 6: Final answer
    x = 15,987,704.41

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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.