Home / 17,280.60-25,921.32-12,925.72

Finding the Fourth Proportional to 17,280.60, 25,921.32 and 12,925.72

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Solution

The fourth proportional to 17,280.60, 25,921.32 and 12,925.72 is: 19,388.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,280.60 : 25,921.32 = 12,925.72 : x
  2. Step 2: Convert to fraction form
    17,280.60/25,921.32 = 12,925.72/x
  3. Step 3: Cross multiply
    17,280.60x = 25,921.32 × 12,925.72
  4. Step 4: Simplify right side
    17,280.60x = 335,051,724.35
  5. Step 5: Solve for x
    x = 335,051,724.35/17,280.60
  6. Step 6: Final answer
    x = 19,388.89

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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.