Home / 38,722.33-53,438.97-21,731.95

Finding the Fourth Proportional to 38,722.33, 53,438.97 and 21,731.95

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Solution

The fourth proportional to 38,722.33, 53,438.97 and 21,731.95 is: 29,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,722.33 : 53,438.97 = 21,731.95 : x
  2. Step 2: Convert to fraction form
    38,722.33/53,438.97 = 21,731.95/x
  3. Step 3: Cross multiply
    38,722.33x = 53,438.97 × 21,731.95
  4. Step 4: Simplify right side
    38,722.33x = 1,161,333,024.09
  5. Step 5: Solve for x
    x = 1,161,333,024.09/38,722.33
  6. Step 6: Final answer
    x = 29,991.30

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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.