Home / 28,709.44-39,620.34-15,963.92

Finding the Fourth Proportional to 28,709.44, 39,620.34 and 15,963.92

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Solution

The fourth proportional to 28,709.44, 39,620.34 and 15,963.92 is: 22,030.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.44 : 39,620.34 = 15,963.92 : x
  2. Step 2: Convert to fraction form
    28,709.44/39,620.34 = 15,963.92/x
  3. Step 3: Cross multiply
    28,709.44x = 39,620.34 × 15,963.92
  4. Step 4: Simplify right side
    28,709.44x = 632,496,037.18
  5. Step 5: Solve for x
    x = 632,496,037.18/28,709.44
  6. Step 6: Final answer
    x = 22,030.94

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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.