Home / 39,755.49-54,862.70-21,852.33

Finding the Fourth Proportional to 39,755.49, 54,862.70 and 21,852.33

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Solution

The fourth proportional to 39,755.49, 54,862.70 and 21,852.33 is: 30,156.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,755.49 : 54,862.70 = 21,852.33 : x
  2. Step 2: Convert to fraction form
    39,755.49/54,862.70 = 21,852.33/x
  3. Step 3: Cross multiply
    39,755.49x = 54,862.70 × 21,852.33
  4. Step 4: Simplify right side
    39,755.49x = 1,198,877,715.83
  5. Step 5: Solve for x
    x = 1,198,877,715.83/39,755.49
  6. Step 6: Final answer
    x = 30,156.28

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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.