Home / 39,172.08-58,791.72-15,815.28

Finding the Fourth Proportional to 39,172.08, 58,791.72 and 15,815.28

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Solution

The fourth proportional to 39,172.08, 58,791.72 and 15,815.28 is: 23,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,172.08 : 58,791.72 = 15,815.28 : x
  2. Step 2: Convert to fraction form
    39,172.08/58,791.72 = 15,815.28/x
  3. Step 3: Cross multiply
    39,172.08x = 58,791.72 × 15,815.28
  4. Step 4: Simplify right side
    39,172.08x = 929,807,513.48
  5. Step 5: Solve for x
    x = 929,807,513.48/39,172.08
  6. Step 6: Final answer
    x = 23,736.49

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1.5x scale

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.