Home / 28,577.72-42,894.26-13,797.02

Finding the Fourth Proportional to 28,577.72, 42,894.26 and 13,797.02

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Solution

The fourth proportional to 28,577.72, 42,894.26 and 13,797.02 is: 20,708.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.72 : 42,894.26 = 13,797.02 : x
  2. Step 2: Convert to fraction form
    28,577.72/42,894.26 = 13,797.02/x
  3. Step 3: Cross multiply
    28,577.72x = 42,894.26 × 13,797.02
  4. Step 4: Simplify right side
    28,577.72x = 591,812,679.65
  5. Step 5: Solve for x
    x = 591,812,679.65/28,577.72
  6. Step 6: Final answer
    x = 20,708.89

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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.