Home / 28,774.34-43,161.42-12,960.86

Finding the Fourth Proportional to 28,774.34, 43,161.42 and 12,960.86

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Solution

The fourth proportional to 28,774.34, 43,161.42 and 12,960.86 is: 19,441.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.34 : 43,161.42 = 12,960.86 : x
  2. Step 2: Convert to fraction form
    28,774.34/43,161.42 = 12,960.86/x
  3. Step 3: Cross multiply
    28,774.34x = 43,161.42 × 12,960.86
  4. Step 4: Simplify right side
    28,774.34x = 559,409,122.02
  5. Step 5: Solve for x
    x = 559,409,122.02/28,774.34
  6. Step 6: Final answer
    x = 19,441.25

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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.