Home / 37,639.67-51,940.98-21,729.24

Finding the Fourth Proportional to 37,639.67, 51,940.98 and 21,729.24

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Solution

The fourth proportional to 37,639.67, 51,940.98 and 21,729.24 is: 29,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,639.67 : 51,940.98 = 21,729.24 : x
  2. Step 2: Convert to fraction form
    37,639.67/51,940.98 = 21,729.24/x
  3. Step 3: Cross multiply
    37,639.67x = 51,940.98 × 21,729.24
  4. Step 4: Simplify right side
    37,639.67x = 1,128,638,020.26
  5. Step 5: Solve for x
    x = 1,128,638,020.26/37,639.67
  6. Step 6: Final answer
    x = 29,985.34

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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.