Home / 21,668.52-32,476.20-12,316.38

Finding the Fourth Proportional to 21,668.52, 32,476.20 and 12,316.38

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Solution

The fourth proportional to 21,668.52, 32,476.20 and 12,316.38 is: 18,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.52 : 32,476.20 = 12,316.38 : x
  2. Step 2: Convert to fraction form
    21,668.52/32,476.20 = 12,316.38/x
  3. Step 3: Cross multiply
    21,668.52x = 32,476.20 × 12,316.38
  4. Step 4: Simplify right side
    21,668.52x = 399,989,220.16
  5. Step 5: Solve for x
    x = 399,989,220.16/21,668.52
  6. Step 6: Final answer
    x = 18,459.46

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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.