Home / 21,772.75-30,046.40-12,341.92

Finding the Fourth Proportional to 21,772.75, 30,046.40 and 12,341.92

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Solution

The fourth proportional to 21,772.75, 30,046.40 and 12,341.92 is: 17,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,772.75 : 30,046.40 = 12,341.92 : x
  2. Step 2: Convert to fraction form
    21,772.75/30,046.40 = 12,341.92/x
  3. Step 3: Cross multiply
    21,772.75x = 30,046.40 × 12,341.92
  4. Step 4: Simplify right side
    21,772.75x = 370,830,265.09
  5. Step 5: Solve for x
    x = 370,830,265.09/21,772.75
  6. Step 6: Final answer
    x = 17,031.85

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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.