Home / 21,368.46-29,521.20-17,071

Finding the Fourth Proportional to 21,368.46, 29,521.20 and 17,071

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Solution

The fourth proportional to 21,368.46, 29,521.20 and 17,071 is: 23,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.46 : 29,521.20 = 17,071 : x
  2. Step 2: Convert to fraction form
    21,368.46/29,521.20 = 17,071/x
  3. Step 3: Cross multiply
    21,368.46x = 29,521.20 × 17,071
  4. Step 4: Simplify right side
    21,368.46x = 503,956,405.20
  5. Step 5: Solve for x
    x = 503,956,405.20/21,368.46
  6. Step 6: Final answer
    x = 23,584.13

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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.