Home / 28,273.84-39,017.82-15,698.50

Finding the Fourth Proportional to 28,273.84, 39,017.82 and 15,698.50

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Solution

The fourth proportional to 28,273.84, 39,017.82 and 15,698.50 is: 21,663.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.84 : 39,017.82 = 15,698.50 : x
  2. Step 2: Convert to fraction form
    28,273.84/39,017.82 = 15,698.50/x
  3. Step 3: Cross multiply
    28,273.84x = 39,017.82 × 15,698.50
  4. Step 4: Simplify right side
    28,273.84x = 612,521,247.27
  5. Step 5: Solve for x
    x = 612,521,247.27/28,273.84
  6. Step 6: Final answer
    x = 21,663.89

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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.