Home / 16,978.85-23,428.31-9,425.24

Finding the Fourth Proportional to 16,978.85, 23,428.31 and 9,425.24

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Solution

The fourth proportional to 16,978.85, 23,428.31 and 9,425.24 is: 13,005.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,978.85 : 23,428.31 = 9,425.24 : x
  2. Step 2: Convert to fraction form
    16,978.85/23,428.31 = 9,425.24/x
  3. Step 3: Cross multiply
    16,978.85x = 23,428.31 × 9,425.24
  4. Step 4: Simplify right side
    16,978.85x = 220,817,444.54
  5. Step 5: Solve for x
    x = 220,817,444.54/16,978.85
  6. Step 6: Final answer
    x = 13,005.44

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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.