Home / 21,600.39-29,808.68-12,040.89

Finding the Fourth Proportional to 21,600.39, 29,808.68 and 12,040.89

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Solution

The fourth proportional to 21,600.39, 29,808.68 and 12,040.89 is: 16,616.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,600.39 : 29,808.68 = 12,040.89 : x
  2. Step 2: Convert to fraction form
    21,600.39/29,808.68 = 12,040.89/x
  3. Step 3: Cross multiply
    21,600.39x = 29,808.68 × 12,040.89
  4. Step 4: Simplify right side
    21,600.39x = 358,922,864.94
  5. Step 5: Solve for x
    x = 358,922,864.94/21,600.39
  6. Step 6: Final answer
    x = 16,616.50

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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.