Home / 22,623.64-31,221.46-13,669.42

Finding the Fourth Proportional to 22,623.64, 31,221.46 and 13,669.42

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Solution

The fourth proportional to 22,623.64, 31,221.46 and 13,669.42 is: 18,864.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,623.64 : 31,221.46 = 13,669.42 : x
  2. Step 2: Convert to fraction form
    22,623.64/31,221.46 = 13,669.42/x
  3. Step 3: Cross multiply
    22,623.64x = 31,221.46 × 13,669.42
  4. Step 4: Simplify right side
    22,623.64x = 426,779,249.75
  5. Step 5: Solve for x
    x = 426,779,249.75/22,623.64
  6. Step 6: Final answer
    x = 18,864.31

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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.