Home / 21,678.38-32,514.16-6,885.35

Finding the Fourth Proportional to 21,678.38, 32,514.16 and 6,885.35

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Solution

The fourth proportional to 21,678.38, 32,514.16 and 6,885.35 is: 10,326.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678.38 : 32,514.16 = 6,885.35 : x
  2. Step 2: Convert to fraction form
    21,678.38/32,514.16 = 6,885.35/x
  3. Step 3: Cross multiply
    21,678.38x = 32,514.16 × 6,885.35
  4. Step 4: Simplify right side
    21,678.38x = 223,871,371.56
  5. Step 5: Solve for x
    x = 223,871,371.56/21,678.38
  6. Step 6: Final answer
    x = 10,326.94

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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.