Home / 28,856.90-39,824.52-16,112.58

Finding the Fourth Proportional to 28,856.90, 39,824.52 and 16,112.58

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Solution

The fourth proportional to 28,856.90, 39,824.52 and 16,112.58 is: 22,236.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.90 : 39,824.52 = 16,112.58 : x
  2. Step 2: Convert to fraction form
    28,856.90/39,824.52 = 16,112.58/x
  3. Step 3: Cross multiply
    28,856.90x = 39,824.52 × 16,112.58
  4. Step 4: Simplify right side
    28,856.90x = 641,675,764.46
  5. Step 5: Solve for x
    x = 641,675,764.46/28,856.90
  6. Step 6: Final answer
    x = 22,236.48

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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.