Home / 28,249.74-38,985.86-16,917.06

Finding the Fourth Proportional to 28,249.74, 38,985.86 and 16,917.06

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Solution

The fourth proportional to 28,249.74, 38,985.86 and 16,917.06 is: 23,346.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.74 : 38,985.86 = 16,917.06 : x
  2. Step 2: Convert to fraction form
    28,249.74/38,985.86 = 16,917.06/x
  3. Step 3: Cross multiply
    28,249.74x = 38,985.86 × 16,917.06
  4. Step 4: Simplify right side
    28,249.74x = 659,526,290.23
  5. Step 5: Solve for x
    x = 659,526,290.23/28,249.74
  6. Step 6: Final answer
    x = 23,346.28

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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.