Home / 28,928.34-43,376.90-13,124.75

Finding the Fourth Proportional to 28,928.34, 43,376.90 and 13,124.75

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Solution

The fourth proportional to 28,928.34, 43,376.90 and 13,124.75 is: 19,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.34 : 43,376.90 = 13,124.75 : x
  2. Step 2: Convert to fraction form
    28,928.34/43,376.90 = 13,124.75/x
  3. Step 3: Cross multiply
    28,928.34x = 43,376.90 × 13,124.75
  4. Step 4: Simplify right side
    28,928.34x = 569,310,751.39
  5. Step 5: Solve for x
    x = 569,310,751.39/28,928.34
  6. Step 6: Final answer
    x = 19,680.04

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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.