Home / 21,506.12-29,664.18-13,002.68

Finding the Fourth Proportional to 21,506.12, 29,664.18 and 13,002.68

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Solution

The fourth proportional to 21,506.12, 29,664.18 and 13,002.68 is: 17,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,506.12 : 29,664.18 = 13,002.68 : x
  2. Step 2: Convert to fraction form
    21,506.12/29,664.18 = 13,002.68/x
  3. Step 3: Cross multiply
    21,506.12x = 29,664.18 × 13,002.68
  4. Step 4: Simplify right side
    21,506.12x = 385,713,840.00
  5. Step 5: Solve for x
    x = 385,713,840.00/21,506.12
  6. Step 6: Final answer
    x = 17,935.07

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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.