Home / 30,881.38-46,384.05-18,425.71

Finding the Fourth Proportional to 30,881.38, 46,384.05 and 18,425.71

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Solution

The fourth proportional to 30,881.38, 46,384.05 and 18,425.71 is: 27,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881.38 : 46,384.05 = 18,425.71 : x
  2. Step 2: Convert to fraction form
    30,881.38/46,384.05 = 18,425.71/x
  3. Step 3: Cross multiply
    30,881.38x = 46,384.05 × 18,425.71
  4. Step 4: Simplify right side
    30,881.38x = 854,658,822.01
  5. Step 5: Solve for x
    x = 854,658,822.01/30,881.38
  6. Step 6: Final answer
    x = 27,675.54

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1.5x scale

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.