Home / 21,635.66-29,854.65-12,558.92

Finding the Fourth Proportional to 21,635.66, 29,854.65 and 12,558.92

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Solution

The fourth proportional to 21,635.66, 29,854.65 and 12,558.92 is: 17,329.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,635.66 : 29,854.65 = 12,558.92 : x
  2. Step 2: Convert to fraction form
    21,635.66/29,854.65 = 12,558.92/x
  3. Step 3: Cross multiply
    21,635.66x = 29,854.65 × 12,558.92
  4. Step 4: Simplify right side
    21,635.66x = 374,942,011.70
  5. Step 5: Solve for x
    x = 374,942,011.70/21,635.66
  6. Step 6: Final answer
    x = 17,329.82

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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.