Home / 21,587.56-29,792.98-12,634.54

Finding the Fourth Proportional to 21,587.56, 29,792.98 and 12,634.54

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Solution

The fourth proportional to 21,587.56, 29,792.98 and 12,634.54 is: 17,436.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.56 : 29,792.98 = 12,634.54 : x
  2. Step 2: Convert to fraction form
    21,587.56/29,792.98 = 12,634.54/x
  3. Step 3: Cross multiply
    21,587.56x = 29,792.98 × 12,634.54
  4. Step 4: Simplify right side
    21,587.56x = 376,420,597.53
  5. Step 5: Solve for x
    x = 376,420,597.53/21,587.56
  6. Step 6: Final answer
    x = 17,436.92

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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.