Home / 28,205.19-38,921.82-16,880.92

Finding the Fourth Proportional to 28,205.19, 38,921.82 and 16,880.92

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Solution

The fourth proportional to 28,205.19, 38,921.82 and 16,880.92 is: 23,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205.19 : 38,921.82 = 16,880.92 : x
  2. Step 2: Convert to fraction form
    28,205.19/38,921.82 = 16,880.92/x
  3. Step 3: Cross multiply
    28,205.19x = 38,921.82 × 16,880.92
  4. Step 4: Simplify right side
    28,205.19x = 657,036,129.67
  5. Step 5: Solve for x
    x = 657,036,129.67/28,205.19
  6. Step 6: Final answer
    x = 23,294.87

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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.