Home / 31,215.47-46,821.83-9,028.35

Finding the Fourth Proportional to 31,215.47, 46,821.83 and 9,028.35

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Solution

The fourth proportional to 31,215.47, 46,821.83 and 9,028.35 is: 13,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,215.47 : 46,821.83 = 9,028.35 : x
  2. Step 2: Convert to fraction form
    31,215.47/46,821.83 = 9,028.35/x
  3. Step 3: Cross multiply
    31,215.47x = 46,821.83 × 9,028.35
  4. Step 4: Simplify right side
    31,215.47x = 422,723,823.74
  5. Step 5: Solve for x
    x = 422,723,823.74/31,215.47
  6. Step 6: Final answer
    x = 13,542.13

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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.