Home / 28,715.68-43,034.37-13,895.02

Finding the Fourth Proportional to 28,715.68, 43,034.37 and 13,895.02

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Solution

The fourth proportional to 28,715.68, 43,034.37 and 13,895.02 is: 20,823.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.68 : 43,034.37 = 13,895.02 : x
  2. Step 2: Convert to fraction form
    28,715.68/43,034.37 = 13,895.02/x
  3. Step 3: Cross multiply
    28,715.68x = 43,034.37 × 13,895.02
  4. Step 4: Simplify right side
    28,715.68x = 597,963,431.84
  5. Step 5: Solve for x
    x = 597,963,431.84/28,715.68
  6. Step 6: Final answer
    x = 20,823.59

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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.