Home / 30,979.48-42,751.86-16,832.44

Finding the Fourth Proportional to 30,979.48, 42,751.86 and 16,832.44

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Solution

The fourth proportional to 30,979.48, 42,751.86 and 16,832.44 is: 23,228.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.48 : 42,751.86 = 16,832.44 : x
  2. Step 2: Convert to fraction form
    30,979.48/42,751.86 = 16,832.44/x
  3. Step 3: Cross multiply
    30,979.48x = 42,751.86 × 16,832.44
  4. Step 4: Simplify right side
    30,979.48x = 719,618,118.34
  5. Step 5: Solve for x
    x = 719,618,118.34/30,979.48
  6. Step 6: Final answer
    x = 23,228.86

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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.