Home / 38,460.36-53,076.78-21,693

Finding the Fourth Proportional to 38,460.36, 53,076.78 and 21,693

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Solution

The fourth proportional to 38,460.36, 53,076.78 and 21,693 is: 29,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,460.36 : 53,076.78 = 21,693 : x
  2. Step 2: Convert to fraction form
    38,460.36/53,076.78 = 21,693/x
  3. Step 3: Cross multiply
    38,460.36x = 53,076.78 × 21,693
  4. Step 4: Simplify right side
    38,460.36x = 1,151,394,588.54
  5. Step 5: Solve for x
    x = 1,151,394,588.54/38,460.36
  6. Step 6: Final answer
    x = 29,937.18

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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.