Home / 21,600.68-29,809.28-12,653.44

Finding the Fourth Proportional to 21,600.68, 29,809.28 and 12,653.44

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Solution

The fourth proportional to 21,600.68, 29,809.28 and 12,653.44 is: 17,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,600.68 : 29,809.28 = 12,653.44 : x
  2. Step 2: Convert to fraction form
    21,600.68/29,809.28 = 12,653.44/x
  3. Step 3: Cross multiply
    21,600.68x = 29,809.28 × 12,653.44
  4. Step 4: Simplify right side
    21,600.68x = 377,189,935.92
  5. Step 5: Solve for x
    x = 377,189,935.92/21,600.68
  6. Step 6: Final answer
    x = 17,461.95

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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.