Home / 21,395.85-29,516.34-13,844.63

Finding the Fourth Proportional to 21,395.85, 29,516.34 and 13,844.63

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Solution

The fourth proportional to 21,395.85, 29,516.34 and 13,844.63 is: 19,099.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.85 : 29,516.34 = 13,844.63 : x
  2. Step 2: Convert to fraction form
    21,395.85/29,516.34 = 13,844.63/x
  3. Step 3: Cross multiply
    21,395.85x = 29,516.34 × 13,844.63
  4. Step 4: Simplify right side
    21,395.85x = 408,642,658.67
  5. Step 5: Solve for x
    x = 408,642,658.67/21,395.85
  6. Step 6: Final answer
    x = 19,099.16

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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.