Home / 31,307.57-46,949.67-12,581.27

Finding the Fourth Proportional to 31,307.57, 46,949.67 and 12,581.27

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Solution

The fourth proportional to 31,307.57, 46,949.67 and 12,581.27 is: 18,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,307.57 : 46,949.67 = 12,581.27 : x
  2. Step 2: Convert to fraction form
    31,307.57/46,949.67 = 12,581.27/x
  3. Step 3: Cross multiply
    31,307.57x = 46,949.67 × 12,581.27
  4. Step 4: Simplify right side
    31,307.57x = 590,686,415.99
  5. Step 5: Solve for x
    x = 590,686,415.99/31,307.57
  6. Step 6: Final answer
    x = 18,867.21

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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.