Home / 28,243.08-38,975.97-15,496.92

Finding the Fourth Proportional to 28,243.08, 38,975.97 and 15,496.92

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Solution

The fourth proportional to 28,243.08, 38,975.97 and 15,496.92 is: 21,386.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.08 : 38,975.97 = 15,496.92 : x
  2. Step 2: Convert to fraction form
    28,243.08/38,975.97 = 15,496.92/x
  3. Step 3: Cross multiply
    28,243.08x = 38,975.97 × 15,496.92
  4. Step 4: Simplify right side
    28,243.08x = 604,007,489.01
  5. Step 5: Solve for x
    x = 604,007,489.01/28,243.08
  6. Step 6: Final answer
    x = 21,386.03

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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.