Home / 28,376.16-42,539.52-11,725.76

Finding the Fourth Proportional to 28,376.16, 42,539.52 and 11,725.76

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Solution

The fourth proportional to 28,376.16, 42,539.52 and 11,725.76 is: 17,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.16 : 42,539.52 = 11,725.76 : x
  2. Step 2: Convert to fraction form
    28,376.16/42,539.52 = 11,725.76/x
  3. Step 3: Cross multiply
    28,376.16x = 42,539.52 × 11,725.76
  4. Step 4: Simplify right side
    28,376.16x = 498,808,202.04
  5. Step 5: Solve for x
    x = 498,808,202.04/28,376.16
  6. Step 6: Final answer
    x = 17,578.43

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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.