Home / 31,003.10-42,783.80-16,855.82

Finding the Fourth Proportional to 31,003.10, 42,783.80 and 16,855.82

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Solution

The fourth proportional to 31,003.10, 42,783.80 and 16,855.82 is: 23,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,003.10 : 42,783.80 = 16,855.82 : x
  2. Step 2: Convert to fraction form
    31,003.10/42,783.80 = 16,855.82/x
  3. Step 3: Cross multiply
    31,003.10x = 42,783.80 × 16,855.82
  4. Step 4: Simplify right side
    31,003.10x = 721,156,031.72
  5. Step 5: Solve for x
    x = 721,156,031.72/31,003.10
  6. Step 6: Final answer
    x = 23,260.77

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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.