Home / 36,715.28-55,072.68-10,420.04

Finding the Fourth Proportional to 36,715.28, 55,072.68 and 10,420.04

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Solution

The fourth proportional to 36,715.28, 55,072.68 and 10,420.04 is: 15,629.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,715.28 : 55,072.68 = 10,420.04 : x
  2. Step 2: Convert to fraction form
    36,715.28/55,072.68 = 10,420.04/x
  3. Step 3: Cross multiply
    36,715.28x = 55,072.68 × 10,420.04
  4. Step 4: Simplify right side
    36,715.28x = 573,859,528.51
  5. Step 5: Solve for x
    x = 573,859,528.51/36,715.28
  6. Step 6: Final answer
    x = 15,629.99

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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.