Home / 28,499.94-42,685.70-13,719.96

Finding the Fourth Proportional to 28,499.94, 42,685.70 and 13,719.96

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Solution

The fourth proportional to 28,499.94, 42,685.70 and 13,719.96 is: 20,549.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499.94 : 42,685.70 = 13,719.96 : x
  2. Step 2: Convert to fraction form
    28,499.94/42,685.70 = 13,719.96/x
  3. Step 3: Cross multiply
    28,499.94x = 42,685.70 × 13,719.96
  4. Step 4: Simplify right side
    28,499.94x = 585,646,027.97
  5. Step 5: Solve for x
    x = 585,646,027.97/28,499.94
  6. Step 6: Final answer
    x = 20,549.03

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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.