Home / 31,857.32-47,791.73-13,126.93

Finding the Fourth Proportional to 31,857.32, 47,791.73 and 13,126.93

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Solution

The fourth proportional to 31,857.32, 47,791.73 and 13,126.93 is: 19,692.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,857.32 : 47,791.73 = 13,126.93 : x
  2. Step 2: Convert to fraction form
    31,857.32/47,791.73 = 13,126.93/x
  3. Step 3: Cross multiply
    31,857.32x = 47,791.73 × 13,126.93
  4. Step 4: Simplify right side
    31,857.32x = 627,358,694.29
  5. Step 5: Solve for x
    x = 627,358,694.29/31,857.32
  6. Step 6: Final answer
    x = 19,692.76

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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.