Home / 21,772.22-30,046.02-12,340.58

Finding the Fourth Proportional to 21,772.22, 30,046.02 and 12,340.58

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Solution

The fourth proportional to 21,772.22, 30,046.02 and 12,340.58 is: 17,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,772.22 : 30,046.02 = 12,340.58 : x
  2. Step 2: Convert to fraction form
    21,772.22/30,046.02 = 12,340.58/x
  3. Step 3: Cross multiply
    21,772.22x = 30,046.02 × 12,340.58
  4. Step 4: Simplify right side
    21,772.22x = 370,785,313.49
  5. Step 5: Solve for x
    x = 370,785,313.49/21,772.22
  6. Step 6: Final answer
    x = 17,030.20

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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.