Home / 28,279.67-39,026.77-16,182.12

Finding the Fourth Proportional to 28,279.67, 39,026.77 and 16,182.12

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Solution

The fourth proportional to 28,279.67, 39,026.77 and 16,182.12 is: 22,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.67 : 39,026.77 = 16,182.12 : x
  2. Step 2: Convert to fraction form
    28,279.67/39,026.77 = 16,182.12/x
  3. Step 3: Cross multiply
    28,279.67x = 39,026.77 × 16,182.12
  4. Step 4: Simplify right side
    28,279.67x = 631,535,794.44
  5. Step 5: Solve for x
    x = 631,535,794.44/28,279.67
  6. Step 6: Final answer
    x = 22,331.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.