Home / 28,698.20-39,603.26-15,951.06

Finding the Fourth Proportional to 28,698.20, 39,603.26 and 15,951.06

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Solution

The fourth proportional to 28,698.20, 39,603.26 and 15,951.06 is: 22,012.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,698.20 : 39,603.26 = 15,951.06 : x
  2. Step 2: Convert to fraction form
    28,698.20/39,603.26 = 15,951.06/x
  3. Step 3: Cross multiply
    28,698.20x = 39,603.26 × 15,951.06
  4. Step 4: Simplify right side
    28,698.20x = 631,713,837.57
  5. Step 5: Solve for x
    x = 631,713,837.57/28,698.20
  6. Step 6: Final answer
    x = 22,012.31

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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.