Home / 21,564.46-29,758.90-12,133.03

Finding the Fourth Proportional to 21,564.46, 29,758.90 and 12,133.03

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Solution

The fourth proportional to 21,564.46, 29,758.90 and 12,133.03 is: 16,743.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.46 : 29,758.90 = 12,133.03 : x
  2. Step 2: Convert to fraction form
    21,564.46/29,758.90 = 12,133.03/x
  3. Step 3: Cross multiply
    21,564.46x = 29,758.90 × 12,133.03
  4. Step 4: Simplify right side
    21,564.46x = 361,065,565.80
  5. Step 5: Solve for x
    x = 361,065,565.80/21,564.46
  6. Step 6: Final answer
    x = 16,743.55

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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.