Home / 28,945.84-39,947.10-16,200.49

Finding the Fourth Proportional to 28,945.84, 39,947.10 and 16,200.49

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Solution

The fourth proportional to 28,945.84, 39,947.10 and 16,200.49 is: 22,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.84 : 39,947.10 = 16,200.49 : x
  2. Step 2: Convert to fraction form
    28,945.84/39,947.10 = 16,200.49/x
  3. Step 3: Cross multiply
    28,945.84x = 39,947.10 × 16,200.49
  4. Step 4: Simplify right side
    28,945.84x = 647,162,394.34
  5. Step 5: Solve for x
    x = 647,162,394.34/28,945.84
  6. Step 6: Final answer
    x = 22,357.70

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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.