Home / 18,188.23-25,071.16-16,662.79

Finding the Fourth Proportional to 18,188.23, 25,071.16 and 16,662.79

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Solution

The fourth proportional to 18,188.23, 25,071.16 and 16,662.79 is: 22,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.23 : 25,071.16 = 16,662.79 : x
  2. Step 2: Convert to fraction form
    18,188.23/25,071.16 = 16,662.79/x
  3. Step 3: Cross multiply
    18,188.23x = 25,071.16 × 16,662.79
  4. Step 4: Simplify right side
    18,188.23x = 417,755,474.14
  5. Step 5: Solve for x
    x = 417,755,474.14/18,188.23
  6. Step 6: Final answer
    x = 22,968.45

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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.