Home / 21,322.95-29,433.02-12,829.83

Finding the Fourth Proportional to 21,322.95, 29,433.02 and 12,829.83

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Solution

The fourth proportional to 21,322.95, 29,433.02 and 12,829.83 is: 17,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.95 : 29,433.02 = 12,829.83 : x
  2. Step 2: Convert to fraction form
    21,322.95/29,433.02 = 12,829.83/x
  3. Step 3: Cross multiply
    21,322.95x = 29,433.02 × 12,829.83
  4. Step 4: Simplify right side
    21,322.95x = 377,620,578.84
  5. Step 5: Solve for x
    x = 377,620,578.84/21,322.95
  6. Step 6: Final answer
    x = 17,709.58

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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.