Home / 28,272.54-39,023.11-16,343.31

Finding the Fourth Proportional to 28,272.54, 39,023.11 and 16,343.31

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Solution

The fourth proportional to 28,272.54, 39,023.11 and 16,343.31 is: 22,557.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.54 : 39,023.11 = 16,343.31 : x
  2. Step 2: Convert to fraction form
    28,272.54/39,023.11 = 16,343.31/x
  3. Step 3: Cross multiply
    28,272.54x = 39,023.11 × 16,343.31
  4. Step 4: Simplify right side
    28,272.54x = 637,766,783.89
  5. Step 5: Solve for x
    x = 637,766,783.89/28,272.54
  6. Step 6: Final answer
    x = 22,557.82

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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.