Home / 21,209.04-29,283.12-13,254.84

Finding the Fourth Proportional to 21,209.04, 29,283.12 and 13,254.84

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Solution

The fourth proportional to 21,209.04, 29,283.12 and 13,254.84 is: 18,300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.04 : 29,283.12 = 13,254.84 : x
  2. Step 2: Convert to fraction form
    21,209.04/29,283.12 = 13,254.84/x
  3. Step 3: Cross multiply
    21,209.04x = 29,283.12 × 13,254.84
  4. Step 4: Simplify right side
    21,209.04x = 388,143,070.30
  5. Step 5: Solve for x
    x = 388,143,070.30/21,209.04
  6. Step 6: Final answer
    x = 18,300.83

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