Home / 27,896.50-38,487.81-15,795.33

Finding the Fourth Proportional to 27,896.50, 38,487.81 and 15,795.33

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Solution

The fourth proportional to 27,896.50, 38,487.81 and 15,795.33 is: 21,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,896.50 : 38,487.81 = 15,795.33 : x
  2. Step 2: Convert to fraction form
    27,896.50/38,487.81 = 15,795.33/x
  3. Step 3: Cross multiply
    27,896.50x = 38,487.81 × 15,795.33
  4. Step 4: Simplify right side
    27,896.50x = 607,927,580.95
  5. Step 5: Solve for x
    x = 607,927,580.95/27,896.50
  6. Step 6: Final answer
    x = 21,792.25

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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.