Home / 21,496.81-29,666.92-12,065.38

Finding the Fourth Proportional to 21,496.81, 29,666.92 and 12,065.38

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Solution

The fourth proportional to 21,496.81, 29,666.92 and 12,065.38 is: 16,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,496.81 : 29,666.92 = 12,065.38 : x
  2. Step 2: Convert to fraction form
    21,496.81/29,666.92 = 12,065.38/x
  3. Step 3: Cross multiply
    21,496.81x = 29,666.92 × 12,065.38
  4. Step 4: Simplify right side
    21,496.81x = 357,942,663.23
  5. Step 5: Solve for x
    x = 357,942,663.23/21,496.81
  6. Step 6: Final answer
    x = 16,650.97

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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.