Home / 38,955.33-53,755.11-21,726.63

Finding the Fourth Proportional to 38,955.33, 53,755.11 and 21,726.63

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Solution

The fourth proportional to 38,955.33, 53,755.11 and 21,726.63 is: 29,980.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,955.33 : 53,755.11 = 21,726.63 : x
  2. Step 2: Convert to fraction form
    38,955.33/53,755.11 = 21,726.63/x
  3. Step 3: Cross multiply
    38,955.33x = 53,755.11 × 21,726.63
  4. Step 4: Simplify right side
    38,955.33x = 1,167,917,385.58
  5. Step 5: Solve for x
    x = 1,167,917,385.58/38,955.33
  6. Step 6: Final answer
    x = 29,980.94

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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.