Home / 16,815.60-25,242-14,215.32

Finding the Fourth Proportional to 16,815.60, 25,242 and 14,215.32

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Solution

The fourth proportional to 16,815.60, 25,242 and 14,215.32 is: 21,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.60 : 25,242 = 14,215.32 : x
  2. Step 2: Convert to fraction form
    16,815.60/25,242 = 14,215.32/x
  3. Step 3: Cross multiply
    16,815.60x = 25,242 × 14,215.32
  4. Step 4: Simplify right side
    16,815.60x = 358,823,107.44
  5. Step 5: Solve for x
    x = 358,823,107.44/16,815.60
  6. Step 6: Final answer
    x = 21,338.70

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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.