Home / 28,192.37-42,235.38-21,921.99

Finding the Fourth Proportional to 28,192.37, 42,235.38 and 21,921.99

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Solution

The fourth proportional to 28,192.37, 42,235.38 and 21,921.99 is: 32,841.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.37 : 42,235.38 = 21,921.99 : x
  2. Step 2: Convert to fraction form
    28,192.37/42,235.38 = 21,921.99/x
  3. Step 3: Cross multiply
    28,192.37x = 42,235.38 × 21,921.99
  4. Step 4: Simplify right side
    28,192.37x = 925,883,578.01
  5. Step 5: Solve for x
    x = 925,883,578.01/28,192.37
  6. Step 6: Final answer
    x = 32,841.64

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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.