Home / 21,336.18-29,422.08-14,163.57

Finding the Fourth Proportional to 21,336.18, 29,422.08 and 14,163.57

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Solution

The fourth proportional to 21,336.18, 29,422.08 and 14,163.57 is: 19,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.18 : 29,422.08 = 14,163.57 : x
  2. Step 2: Convert to fraction form
    21,336.18/29,422.08 = 14,163.57/x
  3. Step 3: Cross multiply
    21,336.18x = 29,422.08 × 14,163.57
  4. Step 4: Simplify right side
    21,336.18x = 416,721,689.63
  5. Step 5: Solve for x
    x = 416,721,689.63/21,336.18
  6. Step 6: Final answer
    x = 19,531.22

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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.