Home / 28,149.39-38,841.75-16,210.80

Finding the Fourth Proportional to 28,149.39, 38,841.75 and 16,210.80

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Solution

The fourth proportional to 28,149.39, 38,841.75 and 16,210.80 is: 22,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.39 : 38,841.75 = 16,210.80 : x
  2. Step 2: Convert to fraction form
    28,149.39/38,841.75 = 16,210.80/x
  3. Step 3: Cross multiply
    28,149.39x = 38,841.75 × 16,210.80
  4. Step 4: Simplify right side
    28,149.39x = 629,655,840.90
  5. Step 5: Solve for x
    x = 629,655,840.90/28,149.39
  6. Step 6: Final answer
    x = 22,368.37

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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.