Home / 21,368.73-29,487.33-11,808.51

Finding the Fourth Proportional to 21,368.73, 29,487.33 and 11,808.51

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Solution

The fourth proportional to 21,368.73, 29,487.33 and 11,808.51 is: 16,294.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.73 : 29,487.33 = 11,808.51 : x
  2. Step 2: Convert to fraction form
    21,368.73/29,487.33 = 11,808.51/x
  3. Step 3: Cross multiply
    21,368.73x = 29,487.33 × 11,808.51
  4. Step 4: Simplify right side
    21,368.73x = 348,201,431.18
  5. Step 5: Solve for x
    x = 348,201,431.18/21,368.73
  6. Step 6: Final answer
    x = 16,294.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.