Home / 28,768.53-39,699.75-16,021.71

Finding the Fourth Proportional to 28,768.53, 39,699.75 and 16,021.71

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Solution

The fourth proportional to 28,768.53, 39,699.75 and 16,021.71 is: 22,109.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.53 : 39,699.75 = 16,021.71 : x
  2. Step 2: Convert to fraction form
    28,768.53/39,699.75 = 16,021.71/x
  3. Step 3: Cross multiply
    28,768.53x = 39,699.75 × 16,021.71
  4. Step 4: Simplify right side
    28,768.53x = 636,057,881.57
  5. Step 5: Solve for x
    x = 636,057,881.57/28,768.53
  6. Step 6: Final answer
    x = 22,109.50

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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.