Home / 16,896.80-25,345.20-16,781.60

Finding the Fourth Proportional to 16,896.80, 25,345.20 and 16,781.60

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Solution

The fourth proportional to 16,896.80, 25,345.20 and 16,781.60 is: 25,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,896.80 : 25,345.20 = 16,781.60 : x
  2. Step 2: Convert to fraction form
    16,896.80/25,345.20 = 16,781.60/x
  3. Step 3: Cross multiply
    16,896.80x = 25,345.20 × 16,781.60
  4. Step 4: Simplify right side
    16,896.80x = 425,333,008.32
  5. Step 5: Solve for x
    x = 425,333,008.32/16,896.80
  6. Step 6: Final answer
    x = 25,172.40

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1.5x scale

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.