Home / 30,945.73-42,705.07-16,798.58

Finding the Fourth Proportional to 30,945.73, 42,705.07 and 16,798.58

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Solution

The fourth proportional to 30,945.73, 42,705.07 and 16,798.58 is: 23,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.73 : 42,705.07 = 16,798.58 : x
  2. Step 2: Convert to fraction form
    30,945.73/42,705.07 = 16,798.58/x
  3. Step 3: Cross multiply
    30,945.73x = 42,705.07 × 16,798.58
  4. Step 4: Simplify right side
    30,945.73x = 717,384,237.28
  5. Step 5: Solve for x
    x = 717,384,237.28/30,945.73
  6. Step 6: Final answer
    x = 23,182.01

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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.