Home / 38,928.15-53,709.73-21,926.45

Finding the Fourth Proportional to 38,928.15, 53,709.73 and 21,926.45

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Solution

The fourth proportional to 38,928.15, 53,709.73 and 21,926.45 is: 30,252.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,928.15 : 53,709.73 = 21,926.45 : x
  2. Step 2: Convert to fraction form
    38,928.15/53,709.73 = 21,926.45/x
  3. Step 3: Cross multiply
    38,928.15x = 53,709.73 × 21,926.45
  4. Step 4: Simplify right side
    38,928.15x = 1,177,663,331.18
  5. Step 5: Solve for x
    x = 1,177,663,331.18/38,928.15
  6. Step 6: Final answer
    x = 30,252.23

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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.