Home / 21,336.84-29,444.64-11,776.81

Finding the Fourth Proportional to 21,336.84, 29,444.64 and 11,776.81

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Solution

The fourth proportional to 21,336.84, 29,444.64 and 11,776.81 is: 16,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.84 : 29,444.64 = 11,776.81 : x
  2. Step 2: Convert to fraction form
    21,336.84/29,444.64 = 11,776.81/x
  3. Step 3: Cross multiply
    21,336.84x = 29,444.64 × 11,776.81
  4. Step 4: Simplify right side
    21,336.84x = 346,763,930.80
  5. Step 5: Solve for x
    x = 346,763,930.80/21,336.84
  6. Step 6: Final answer
    x = 16,251.89

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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.