Home / 21,966.94-30,309.15-12,407.02

Finding the Fourth Proportional to 21,966.94, 30,309.15 and 12,407.02

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Solution

The fourth proportional to 21,966.94, 30,309.15 and 12,407.02 is: 17,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.94 : 30,309.15 = 12,407.02 : x
  2. Step 2: Convert to fraction form
    21,966.94/30,309.15 = 12,407.02/x
  3. Step 3: Cross multiply
    21,966.94x = 30,309.15 × 12,407.02
  4. Step 4: Simplify right side
    21,966.94x = 376,046,230.23
  5. Step 5: Solve for x
    x = 376,046,230.23/21,966.94
  6. Step 6: Final answer
    x = 17,118.74

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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.