Home / 22,815.67-31,484.68-12,744.06

Finding the Fourth Proportional to 22,815.67, 31,484.68 and 12,744.06

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Solution

The fourth proportional to 22,815.67, 31,484.68 and 12,744.06 is: 17,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,815.67 : 31,484.68 = 12,744.06 : x
  2. Step 2: Convert to fraction form
    22,815.67/31,484.68 = 12,744.06/x
  3. Step 3: Cross multiply
    22,815.67x = 31,484.68 × 12,744.06
  4. Step 4: Simplify right side
    22,815.67x = 401,242,651.00
  5. Step 5: Solve for x
    x = 401,242,651.00/22,815.67
  6. Step 6: Final answer
    x = 17,586.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.