Home / 27,895.68-38,496.96-15,321.60

Finding the Fourth Proportional to 27,895.68, 38,496.96 and 15,321.60

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Solution

The fourth proportional to 27,895.68, 38,496.96 and 15,321.60 is: 21,144.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,895.68 : 38,496.96 = 15,321.60 : x
  2. Step 2: Convert to fraction form
    27,895.68/38,496.96 = 15,321.60/x
  3. Step 3: Cross multiply
    27,895.68x = 38,496.96 × 15,321.60
  4. Step 4: Simplify right side
    27,895.68x = 589,835,022.34
  5. Step 5: Solve for x
    x = 589,835,022.34/27,895.68
  6. Step 6: Final answer
    x = 21,144.31

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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.