Home / 21,655.77-29,882.85-12,094.89

Finding the Fourth Proportional to 21,655.77, 29,882.85 and 12,094.89

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Solution

The fourth proportional to 21,655.77, 29,882.85 and 12,094.89 is: 16,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.77 : 29,882.85 = 12,094.89 : x
  2. Step 2: Convert to fraction form
    21,655.77/29,882.85 = 12,094.89/x
  3. Step 3: Cross multiply
    21,655.77x = 29,882.85 × 12,094.89
  4. Step 4: Simplify right side
    21,655.77x = 361,429,912.37
  5. Step 5: Solve for x
    x = 361,429,912.37/21,655.77
  6. Step 6: Final answer
    x = 16,689.78

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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.