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Finding the Fourth Proportional to 46,986, 70,479 and 14,154

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Solution

The fourth proportional to 46,986, 70,479 and 14,154 is: 21,231

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,986 : 70,479 = 14,154 : x
  2. Step 2: Convert to fraction form
    46,986/70,479 = 14,154/x
  3. Step 3: Cross multiply
    46,986x = 70,479 × 14,154
  4. Step 4: Simplify right side
    46,986x = 997,559,766
  5. Step 5: Solve for x
    x = 997,559,766/46,986
  6. Step 6: Final answer
    x = 21,231

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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.