Home / 21,450.72-32,182.44-15,222.72

Finding the Fourth Proportional to 21,450.72, 32,182.44 and 15,222.72

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Solution

The fourth proportional to 21,450.72, 32,182.44 and 15,222.72 is: 22,838.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.72 : 32,182.44 = 15,222.72 : x
  2. Step 2: Convert to fraction form
    21,450.72/32,182.44 = 15,222.72/x
  3. Step 3: Cross multiply
    21,450.72x = 32,182.44 × 15,222.72
  4. Step 4: Simplify right side
    21,450.72x = 489,904,273.04
  5. Step 5: Solve for x
    x = 489,904,273.04/21,450.72
  6. Step 6: Final answer
    x = 22,838.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.