Home / 30,936.93-42,685.57-18,837.27

Finding the Fourth Proportional to 30,936.93, 42,685.57 and 18,837.27

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Solution

The fourth proportional to 30,936.93, 42,685.57 and 18,837.27 is: 25,990.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.93 : 42,685.57 = 18,837.27 : x
  2. Step 2: Convert to fraction form
    30,936.93/42,685.57 = 18,837.27/x
  3. Step 3: Cross multiply
    30,936.93x = 42,685.57 × 18,837.27
  4. Step 4: Simplify right side
    30,936.93x = 804,079,607.19
  5. Step 5: Solve for x
    x = 804,079,607.19/30,936.93
  6. Step 6: Final answer
    x = 25,990.93

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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.