Home / 21,566.21-29,753.19-13,065.23

Finding the Fourth Proportional to 21,566.21, 29,753.19 and 13,065.23

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Solution

The fourth proportional to 21,566.21, 29,753.19 and 13,065.23 is: 18,025.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,566.21 : 29,753.19 = 13,065.23 : x
  2. Step 2: Convert to fraction form
    21,566.21/29,753.19 = 13,065.23/x
  3. Step 3: Cross multiply
    21,566.21x = 29,753.19 × 13,065.23
  4. Step 4: Simplify right side
    21,566.21x = 388,732,121.82
  5. Step 5: Solve for x
    x = 388,732,121.82/21,566.21
  6. Step 6: Final answer
    x = 18,025.06

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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.