Home / 21,668.71-32,476.48-12,316.56

Finding the Fourth Proportional to 21,668.71, 32,476.48 and 12,316.56

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Solution

The fourth proportional to 21,668.71, 32,476.48 and 12,316.56 is: 18,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.71 : 32,476.48 = 12,316.56 : x
  2. Step 2: Convert to fraction form
    21,668.71/32,476.48 = 12,316.56/x
  3. Step 3: Cross multiply
    21,668.71x = 32,476.48 × 12,316.56
  4. Step 4: Simplify right side
    21,668.71x = 399,998,514.51
  5. Step 5: Solve for x
    x = 399,998,514.51/21,668.71
  6. Step 6: Final answer
    x = 18,459.73

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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.