Home / 28,657.52-39,546.72-15,909.94

Finding the Fourth Proportional to 28,657.52, 39,546.72 and 15,909.94

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Solution

The fourth proportional to 28,657.52, 39,546.72 and 15,909.94 is: 21,955.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,657.52 : 39,546.72 = 15,909.94 : x
  2. Step 2: Convert to fraction form
    28,657.52/39,546.72 = 15,909.94/x
  3. Step 3: Cross multiply
    28,657.52x = 39,546.72 × 15,909.94
  4. Step 4: Simplify right side
    28,657.52x = 629,185,942.40
  5. Step 5: Solve for x
    x = 629,185,942.40/28,657.52
  6. Step 6: Final answer
    x = 21,955.35

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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.