Home / 21,229.17-29,296.53-12,277.05

Finding the Fourth Proportional to 21,229.17, 29,296.53 and 12,277.05

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Solution

The fourth proportional to 21,229.17, 29,296.53 and 12,277.05 is: 16,942.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.17 : 29,296.53 = 12,277.05 : x
  2. Step 2: Convert to fraction form
    21,229.17/29,296.53 = 12,277.05/x
  3. Step 3: Cross multiply
    21,229.17x = 29,296.53 × 12,277.05
  4. Step 4: Simplify right side
    21,229.17x = 359,674,963.64
  5. Step 5: Solve for x
    x = 359,674,963.64/21,229.17
  6. Step 6: Final answer
    x = 16,942.49

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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.