Home / 16,871.31-25,322.32-8,980.46

Finding the Fourth Proportional to 16,871.31, 25,322.32 and 8,980.46

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Solution

The fourth proportional to 16,871.31, 25,322.32 and 8,980.46 is: 13,478.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.31 : 25,322.32 = 8,980.46 : x
  2. Step 2: Convert to fraction form
    16,871.31/25,322.32 = 8,980.46/x
  3. Step 3: Cross multiply
    16,871.31x = 25,322.32 × 8,980.46
  4. Step 4: Simplify right side
    16,871.31x = 227,406,058.40
  5. Step 5: Solve for x
    x = 227,406,058.40/16,871.31
  6. Step 6: Final answer
    x = 13,478.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.