Home / 28,250.49-38,986.90-16,917.82

Finding the Fourth Proportional to 28,250.49, 38,986.90 and 16,917.82

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Solution

The fourth proportional to 28,250.49, 38,986.90 and 16,917.82 is: 23,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.49 : 38,986.90 = 16,917.82 : x
  2. Step 2: Convert to fraction form
    28,250.49/38,986.90 = 16,917.82/x
  3. Step 3: Cross multiply
    28,250.49x = 38,986.90 × 16,917.82
  4. Step 4: Simplify right side
    28,250.49x = 659,573,216.80
  5. Step 5: Solve for x
    x = 659,573,216.80/28,250.49
  6. Step 6: Final answer
    x = 23,347.32

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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.