Home / 28,243.93-38,975.30-15,496.82

Finding the Fourth Proportional to 28,243.93, 38,975.30 and 15,496.82

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Solution

The fourth proportional to 28,243.93, 38,975.30 and 15,496.82 is: 21,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.93 : 38,975.30 = 15,496.82 : x
  2. Step 2: Convert to fraction form
    28,243.93/38,975.30 = 15,496.82/x
  3. Step 3: Cross multiply
    28,243.93x = 38,975.30 × 15,496.82
  4. Step 4: Simplify right side
    28,243.93x = 603,993,344.73
  5. Step 5: Solve for x
    x = 603,993,344.73/28,243.93
  6. Step 6: Final answer
    x = 21,384.89

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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.