Home / 31,855.09-47,776.26-30,274.38

Finding the Fourth Proportional to 31,855.09, 47,776.26 and 30,274.38

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Solution

The fourth proportional to 31,855.09, 47,776.26 and 30,274.38 is: 45,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.09 : 47,776.26 = 30,274.38 : x
  2. Step 2: Convert to fraction form
    31,855.09/47,776.26 = 30,274.38/x
  3. Step 3: Cross multiply
    31,855.09x = 47,776.26 × 30,274.38
  4. Step 4: Simplify right side
    31,855.09x = 1,446,396,411.34
  5. Step 5: Solve for x
    x = 1,446,396,411.34/31,855.09
  6. Step 6: Final answer
    x = 45,405.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.