Home / 31,852.09-43,968.14-21,237.85

Finding the Fourth Proportional to 31,852.09, 43,968.14 and 21,237.85

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Solution

The fourth proportional to 31,852.09, 43,968.14 and 21,237.85 is: 29,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,852.09 : 43,968.14 = 21,237.85 : x
  2. Step 2: Convert to fraction form
    31,852.09/43,968.14 = 21,237.85/x
  3. Step 3: Cross multiply
    31,852.09x = 43,968.14 × 21,237.85
  4. Step 4: Simplify right side
    31,852.09x = 933,788,790.51
  5. Step 5: Solve for x
    x = 933,788,790.51/31,852.09
  6. Step 6: Final answer
    x = 29,316.40

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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.