Home / 23,012.90-31,758.72-12,941.29

Finding the Fourth Proportional to 23,012.90, 31,758.72 and 12,941.29

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Solution

The fourth proportional to 23,012.90, 31,758.72 and 12,941.29 is: 17,859.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,012.90 : 31,758.72 = 12,941.29 : x
  2. Step 2: Convert to fraction form
    23,012.90/31,758.72 = 12,941.29/x
  3. Step 3: Cross multiply
    23,012.90x = 31,758.72 × 12,941.29
  4. Step 4: Simplify right side
    23,012.90x = 410,998,740.84
  5. Step 5: Solve for x
    x = 410,998,740.84/23,012.90
  6. Step 6: Final answer
    x = 17,859.49

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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.