Home / 21,400.63-29,536.92-14,339.32

Finding the Fourth Proportional to 21,400.63, 29,536.92 and 14,339.32

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Solution

The fourth proportional to 21,400.63, 29,536.92 and 14,339.32 is: 19,790.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,400.63 : 29,536.92 = 14,339.32 : x
  2. Step 2: Convert to fraction form
    21,400.63/29,536.92 = 14,339.32/x
  3. Step 3: Cross multiply
    21,400.63x = 29,536.92 × 14,339.32
  4. Step 4: Simplify right side
    21,400.63x = 423,539,273.85
  5. Step 5: Solve for x
    x = 423,539,273.85/21,400.63
  6. Step 6: Final answer
    x = 19,790.97

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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.