Home / 19,665.03-27,157.02-16,815.96

Finding the Fourth Proportional to 19,665.03, 27,157.02 and 16,815.96

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Solution

The fourth proportional to 19,665.03, 27,157.02 and 16,815.96 is: 23,222.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.03 : 27,157.02 = 16,815.96 : x
  2. Step 2: Convert to fraction form
    19,665.03/27,157.02 = 16,815.96/x
  3. Step 3: Cross multiply
    19,665.03x = 27,157.02 × 16,815.96
  4. Step 4: Simplify right side
    19,665.03x = 456,671,362.04
  5. Step 5: Solve for x
    x = 456,671,362.04/19,665.03
  6. Step 6: Final answer
    x = 23,222.51

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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.