Home / 21,033,240-29,025,871.20-11,375,448

Finding the Fourth Proportional to 21,033,240, 29,025,871.20 and 11,375,448

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Solution

The fourth proportional to 21,033,240, 29,025,871.20 and 11,375,448 is: 15,698,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033,240 : 29,025,871.20 = 11,375,448 : x
  2. Step 2: Convert to fraction form
    21,033,240/29,025,871.20 = 11,375,448/x
  3. Step 3: Cross multiply
    21,033,240x = 29,025,871.20 × 11,375,448
  4. Step 4: Simplify right side
    21,033,240x = 330,182,288,490,297.56
  5. Step 5: Solve for x
    x = 330,182,288,490,297.56/21,033,240
  6. Step 6: Final answer
    x = 15,698,118.24

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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.