Home / 21,017,171.58-29,003,683.68-11,359,379.58

Finding the Fourth Proportional to 21,017,171.58, 29,003,683.68 and 11,359,379.58

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Solution

The fourth proportional to 21,017,171.58, 29,003,683.68 and 11,359,379.58 is: 15,675,936.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017,171.58 : 29,003,683.68 = 11,359,379.58 : x
  2. Step 2: Convert to fraction form
    21,017,171.58/29,003,683.68 = 11,359,379.58/x
  3. Step 3: Cross multiply
    21,017,171.58x = 29,003,683.68 × 11,359,379.58
  4. Step 4: Simplify right side
    21,017,171.58x = 329,463,852,139,371.25
  5. Step 5: Solve for x
    x = 329,463,852,139,371.25/21,017,171.58
  6. Step 6: Final answer
    x = 15,675,936.74

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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.