Home / 21,032,805.28-29,025,290.64-11,375,013.28

Finding the Fourth Proportional to 21,032,805.28, 29,025,290.64 and 11,375,013.28

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Solution

The fourth proportional to 21,032,805.28, 29,025,290.64 and 11,375,013.28 is: 15,697,528.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032,805.28 : 29,025,290.64 = 11,375,013.28 : x
  2. Step 2: Convert to fraction form
    21,032,805.28/29,025,290.64 = 11,375,013.28/x
  3. Step 3: Cross multiply
    21,032,805.28x = 29,025,290.64 × 11,375,013.28
  4. Step 4: Simplify right side
    21,032,805.28x = 330,163,066,485,859.69
  5. Step 5: Solve for x
    x = 330,163,066,485,859.69/21,032,805.28
  6. Step 6: Final answer
    x = 15,697,528.79

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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.