Home / 21,613.66-29,826.79-12,053.56

Finding the Fourth Proportional to 21,613.66, 29,826.79 and 12,053.56

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Solution

The fourth proportional to 21,613.66, 29,826.79 and 12,053.56 is: 16,633.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,613.66 : 29,826.79 = 12,053.56 : x
  2. Step 2: Convert to fraction form
    21,613.66/29,826.79 = 12,053.56/x
  3. Step 3: Cross multiply
    21,613.66x = 29,826.79 × 12,053.56
  4. Step 4: Simplify right side
    21,613.66x = 359,518,907.72
  5. Step 5: Solve for x
    x = 359,518,907.72/21,613.66
  6. Step 6: Final answer
    x = 16,633.88

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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.