Home / 21,719.72-29,963.16-15,014.67

Finding the Fourth Proportional to 21,719.72, 29,963.16 and 15,014.67

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Solution

The fourth proportional to 21,719.72, 29,963.16 and 15,014.67 is: 20,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.72 : 29,963.16 = 15,014.67 : x
  2. Step 2: Convert to fraction form
    21,719.72/29,963.16 = 15,014.67/x
  3. Step 3: Cross multiply
    21,719.72x = 29,963.16 × 15,014.67
  4. Step 4: Simplify right side
    21,719.72x = 449,886,959.56
  5. Step 5: Solve for x
    x = 449,886,959.56/21,719.72
  6. Step 6: Final answer
    x = 20,713.30

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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.