Home / 28,715.94-39,628.03-15,968.85

Finding the Fourth Proportional to 28,715.94, 39,628.03 and 15,968.85

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Solution

The fourth proportional to 28,715.94, 39,628.03 and 15,968.85 is: 22,037.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.94 : 39,628.03 = 15,968.85 : x
  2. Step 2: Convert to fraction form
    28,715.94/39,628.03 = 15,968.85/x
  3. Step 3: Cross multiply
    28,715.94x = 39,628.03 × 15,968.85
  4. Step 4: Simplify right side
    28,715.94x = 632,814,066.87
  5. Step 5: Solve for x
    x = 632,814,066.87/28,715.94
  6. Step 6: Final answer
    x = 22,037.03

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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.