Home / 21,014.54-31,367.99-18,523.49

Finding the Fourth Proportional to 21,014.54, 31,367.99 and 18,523.49

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Solution

The fourth proportional to 21,014.54, 31,367.99 and 18,523.49 is: 27,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.54 : 31,367.99 = 18,523.49 : x
  2. Step 2: Convert to fraction form
    21,014.54/31,367.99 = 18,523.49/x
  3. Step 3: Cross multiply
    21,014.54x = 31,367.99 × 18,523.49
  4. Step 4: Simplify right side
    21,014.54x = 581,044,538.55
  5. Step 5: Solve for x
    x = 581,044,538.55/21,014.54
  6. Step 6: Final answer
    x = 27,649.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.