Home / 21,664.23-29,879.64-14,112.93

Finding the Fourth Proportional to 21,664.23, 29,879.64 and 14,112.93

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Solution

The fourth proportional to 21,664.23, 29,879.64 and 14,112.93 is: 19,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.23 : 29,879.64 = 14,112.93 : x
  2. Step 2: Convert to fraction form
    21,664.23/29,879.64 = 14,112.93/x
  3. Step 3: Cross multiply
    21,664.23x = 29,879.64 × 14,112.93
  4. Step 4: Simplify right side
    21,664.23x = 421,689,267.75
  5. Step 5: Solve for x
    x = 421,689,267.75/21,664.23
  6. Step 6: Final answer
    x = 19,464.77

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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.