Home / 30,925.25-42,676.85-16,778.09

Finding the Fourth Proportional to 30,925.25, 42,676.85 and 16,778.09

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Solution

The fourth proportional to 30,925.25, 42,676.85 and 16,778.09 is: 23,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,925.25 : 42,676.85 = 16,778.09 : x
  2. Step 2: Convert to fraction form
    30,925.25/42,676.85 = 16,778.09/x
  3. Step 3: Cross multiply
    30,925.25x = 42,676.85 × 16,778.09
  4. Step 4: Simplify right side
    30,925.25x = 716,036,030.22
  5. Step 5: Solve for x
    x = 716,036,030.22/30,925.25
  6. Step 6: Final answer
    x = 23,153.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.