Home / 46,291.41-69,384.60-21,279.78

Finding the Fourth Proportional to 46,291.41, 69,384.60 and 21,279.78

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Solution

The fourth proportional to 46,291.41, 69,384.60 and 21,279.78 is: 31,895.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,291.41 : 69,384.60 = 21,279.78 : x
  2. Step 2: Convert to fraction form
    46,291.41/69,384.60 = 21,279.78/x
  3. Step 3: Cross multiply
    46,291.41x = 69,384.60 × 21,279.78
  4. Step 4: Simplify right side
    46,291.41x = 1,476,489,023.39
  5. Step 5: Solve for x
    x = 1,476,489,023.39/46,291.41
  6. Step 6: Final answer
    x = 31,895.53

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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.