Home / 28,485.97-39,307.56-16,998.76

Finding the Fourth Proportional to 28,485.97, 39,307.56 and 16,998.76

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Solution

The fourth proportional to 28,485.97, 39,307.56 and 16,998.76 is: 23,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,485.97 : 39,307.56 = 16,998.76 : x
  2. Step 2: Convert to fraction form
    28,485.97/39,307.56 = 16,998.76/x
  3. Step 3: Cross multiply
    28,485.97x = 39,307.56 × 16,998.76
  4. Step 4: Simplify right side
    28,485.97x = 668,179,778.63
  5. Step 5: Solve for x
    x = 668,179,778.63/28,485.97
  6. Step 6: Final answer
    x = 23,456.45

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Double scale
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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.