Home / 16,778.08-23,165.23-15,356.31

Finding the Fourth Proportional to 16,778.08, 23,165.23 and 15,356.31

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Solution

The fourth proportional to 16,778.08, 23,165.23 and 15,356.31 is: 21,202.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,778.08 : 23,165.23 = 15,356.31 : x
  2. Step 2: Convert to fraction form
    16,778.08/23,165.23 = 15,356.31/x
  3. Step 3: Cross multiply
    16,778.08x = 23,165.23 × 15,356.31
  4. Step 4: Simplify right side
    16,778.08x = 355,732,453.10
  5. Step 5: Solve for x
    x = 355,732,453.10/16,778.08
  6. Step 6: Final answer
    x = 21,202.21

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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.