Home / 21,668.77-32,476.57-12,316.63

Finding the Fourth Proportional to 21,668.77, 32,476.57 and 12,316.63

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Solution

The fourth proportional to 21,668.77, 32,476.57 and 12,316.63 is: 18,459.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.77 : 32,476.57 = 12,316.63 : x
  2. Step 2: Convert to fraction form
    21,668.77/32,476.57 = 12,316.63/x
  3. Step 3: Cross multiply
    21,668.77x = 32,476.57 × 12,316.63
  4. Step 4: Simplify right side
    21,668.77x = 400,001,896.36
  5. Step 5: Solve for x
    x = 400,001,896.36/21,668.77
  6. Step 6: Final answer
    x = 18,459.83

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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.