Home / 38,728,429.74-53,446,408.83-21,325,397.74

Finding the Fourth Proportional to 38,728,429.74, 53,446,408.83 and 21,325,397.74

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Solution

The fourth proportional to 38,728,429.74, 53,446,408.83 and 21,325,397.74 is: 29,429,696.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728,429.74 : 53,446,408.83 = 21,325,397.74 : x
  2. Step 2: Convert to fraction form
    38,728,429.74/53,446,408.83 = 21,325,397.74/x
  3. Step 3: Cross multiply
    38,728,429.74x = 53,446,408.83 × 21,325,397.74
  4. Step 4: Simplify right side
    38,728,429.74x = 1,139,765,925,940,782
  5. Step 5: Solve for x
    x = 1,139,765,925,940,782/38,728,429.74
  6. Step 6: Final answer
    x = 29,429,696.31

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1.5x scale

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.