Home / 21,678.62-32,514.54-6,885.59

Finding the Fourth Proportional to 21,678.62, 32,514.54 and 6,885.59

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Solution

The fourth proportional to 21,678.62, 32,514.54 and 6,885.59 is: 10,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678.62 : 32,514.54 = 6,885.59 : x
  2. Step 2: Convert to fraction form
    21,678.62/32,514.54 = 6,885.59/x
  3. Step 3: Cross multiply
    21,678.62x = 32,514.54 × 6,885.59
  4. Step 4: Simplify right side
    21,678.62x = 223,881,791.48
  5. Step 5: Solve for x
    x = 223,881,791.48/21,678.62
  6. Step 6: Final answer
    x = 10,327.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.