Home / 21,719.19-29,973.33-12,028.89

Finding the Fourth Proportional to 21,719.19, 29,973.33 and 12,028.89

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Solution

The fourth proportional to 21,719.19, 29,973.33 and 12,028.89 is: 16,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.19 : 29,973.33 = 12,028.89 : x
  2. Step 2: Convert to fraction form
    21,719.19/29,973.33 = 12,028.89/x
  3. Step 3: Cross multiply
    21,719.19x = 29,973.33 × 12,028.89
  4. Step 4: Simplify right side
    21,719.19x = 360,545,889.50
  5. Step 5: Solve for x
    x = 360,545,889.50/21,719.19
  6. Step 6: Final answer
    x = 16,600.34

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1.5x scale

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.