Home / 31,013.20-46,519.78-13,478.92

Finding the Fourth Proportional to 31,013.20, 46,519.78 and 13,478.92

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Solution

The fourth proportional to 31,013.20, 46,519.78 and 13,478.92 is: 20,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,013.20 : 46,519.78 = 13,478.92 : x
  2. Step 2: Convert to fraction form
    31,013.20/46,519.78 = 13,478.92/x
  3. Step 3: Cross multiply
    31,013.20x = 46,519.78 × 13,478.92
  4. Step 4: Simplify right side
    31,013.20x = 627,036,393.04
  5. Step 5: Solve for x
    x = 627,036,393.04/31,013.20
  6. Step 6: Final answer
    x = 20,218.37

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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.