Home / 15,480.56-23,181.54-12,975.17

Finding the Fourth Proportional to 15,480.56, 23,181.54 and 12,975.17

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Solution

The fourth proportional to 15,480.56, 23,181.54 and 12,975.17 is: 19,429.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.56 : 23,181.54 = 12,975.17 : x
  2. Step 2: Convert to fraction form
    15,480.56/23,181.54 = 12,975.17/x
  3. Step 3: Cross multiply
    15,480.56x = 23,181.54 × 12,975.17
  4. Step 4: Simplify right side
    15,480.56x = 300,784,306.45
  5. Step 5: Solve for x
    x = 300,784,306.45/15,480.56
  6. Step 6: Final answer
    x = 19,429.81

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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.