Home / 31,126.88-46,690.12-14,477.68

Finding the Fourth Proportional to 31,126.88, 46,690.12 and 14,477.68

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Solution

The fourth proportional to 31,126.88, 46,690.12 and 14,477.68 is: 21,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,126.88 : 46,690.12 = 14,477.68 : x
  2. Step 2: Convert to fraction form
    31,126.88/46,690.12 = 14,477.68/x
  3. Step 3: Cross multiply
    31,126.88x = 46,690.12 × 14,477.68
  4. Step 4: Simplify right side
    31,126.88x = 675,964,616.52
  5. Step 5: Solve for x
    x = 675,964,616.52/31,126.88
  6. Step 6: Final answer
    x = 21,716.43

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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.