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Finding the Fourth Proportional to 30,848.49, 46,291.23 and 13,318.30

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Solution

The fourth proportional to 30,848.49, 46,291.23 and 13,318.30 is: 19,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,848.49 : 46,291.23 = 13,318.30 : x
  2. Step 2: Convert to fraction form
    30,848.49/46,291.23 = 13,318.30/x
  3. Step 3: Cross multiply
    30,848.49x = 46,291.23 × 13,318.30
  4. Step 4: Simplify right side
    30,848.49x = 616,520,488.51
  5. Step 5: Solve for x
    x = 616,520,488.51/30,848.49
  6. Step 6: Final answer
    x = 19,985.43

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