Home / 30,857.36-42,583.93-18,927.27

Finding the Fourth Proportional to 30,857.36, 42,583.93 and 18,927.27

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Solution

The fourth proportional to 30,857.36, 42,583.93 and 18,927.27 is: 26,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,857.36 : 42,583.93 = 18,927.27 : x
  2. Step 2: Convert to fraction form
    30,857.36/42,583.93 = 18,927.27/x
  3. Step 3: Cross multiply
    30,857.36x = 42,583.93 × 18,927.27
  4. Step 4: Simplify right side
    30,857.36x = 805,997,493.45
  5. Step 5: Solve for x
    x = 805,997,493.45/30,857.36
  6. Step 6: Final answer
    x = 26,120.11

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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.