Home / 21,032,801.28-29,025,285.12-11,375,009.28

Finding the Fourth Proportional to 21,032,801.28, 29,025,285.12 and 11,375,009.28

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Solution

The fourth proportional to 21,032,801.28, 29,025,285.12 and 11,375,009.28 is: 15,697,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,801.28 : 29,025,285.12 = 11,375,009.28 : x
  2. Step 2: Convert to fraction form
    21,032,801.28/29,025,285.12 = 11,375,009.28/x
  3. Step 3: Cross multiply
    21,032,801.28x = 29,025,285.12 × 11,375,009.28
  4. Step 4: Simplify right side
    21,032,801.28x = 330,162,887,594,645.88
  5. Step 5: Solve for x
    x = 330,162,887,594,645.88/21,032,801.28
  6. Step 6: Final answer
    x = 15,697,523.27

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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.