Home / 31,021.77-46,513.86-13,921.52

Finding the Fourth Proportional to 31,021.77, 46,513.86 and 13,921.52

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Solution

The fourth proportional to 31,021.77, 46,513.86 and 13,921.52 is: 20,873.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,021.77 : 46,513.86 = 13,921.52 : x
  2. Step 2: Convert to fraction form
    31,021.77/46,513.86 = 13,921.52/x
  3. Step 3: Cross multiply
    31,021.77x = 46,513.86 × 13,921.52
  4. Step 4: Simplify right side
    31,021.77x = 647,543,632.27
  5. Step 5: Solve for x
    x = 647,543,632.27/31,021.77
  6. Step 6: Final answer
    x = 20,873.85

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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.