Home / 21,463.44-29,589.30-18,510.72

Finding the Fourth Proportional to 21,463.44, 29,589.30 and 18,510.72

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Solution

The fourth proportional to 21,463.44, 29,589.30 and 18,510.72 is: 25,518.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.44 : 29,589.30 = 18,510.72 : x
  2. Step 2: Convert to fraction form
    21,463.44/29,589.30 = 18,510.72/x
  3. Step 3: Cross multiply
    21,463.44x = 29,589.30 × 18,510.72
  4. Step 4: Simplify right side
    21,463.44x = 547,719,247.30
  5. Step 5: Solve for x
    x = 547,719,247.30/21,463.44
  6. Step 6: Final answer
    x = 25,518.71

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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.