Home / 30,839.24-42,559.18-18,900.27

Finding the Fourth Proportional to 30,839.24, 42,559.18 and 18,900.27

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Solution

The fourth proportional to 30,839.24, 42,559.18 and 18,900.27 is: 26,083.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839.24 : 42,559.18 = 18,900.27 : x
  2. Step 2: Convert to fraction form
    30,839.24/42,559.18 = 18,900.27/x
  3. Step 3: Cross multiply
    30,839.24x = 42,559.18 × 18,900.27
  4. Step 4: Simplify right side
    30,839.24x = 804,379,685.68
  5. Step 5: Solve for x
    x = 804,379,685.68/30,839.24
  6. Step 6: Final answer
    x = 26,083.00

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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.