Home / 28,571.54-39,428.67-15,996.29

Finding the Fourth Proportional to 28,571.54, 39,428.67 and 15,996.29

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Solution

The fourth proportional to 28,571.54, 39,428.67 and 15,996.29 is: 22,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.54 : 39,428.67 = 15,996.29 : x
  2. Step 2: Convert to fraction form
    28,571.54/39,428.67 = 15,996.29/x
  3. Step 3: Cross multiply
    28,571.54x = 39,428.67 × 15,996.29
  4. Step 4: Simplify right side
    28,571.54x = 630,712,302.48
  5. Step 5: Solve for x
    x = 630,712,302.48/28,571.54
  6. Step 6: Final answer
    x = 22,074.85

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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.