Home / 21,364.29-29,484.81-11,933.46

Finding the Fourth Proportional to 21,364.29, 29,484.81 and 11,933.46

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Solution

The fourth proportional to 21,364.29, 29,484.81 and 11,933.46 is: 16,469.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.29 : 29,484.81 = 11,933.46 : x
  2. Step 2: Convert to fraction form
    21,364.29/29,484.81 = 11,933.46/x
  3. Step 3: Cross multiply
    21,364.29x = 29,484.81 × 11,933.46
  4. Step 4: Simplify right side
    21,364.29x = 351,855,800.74
  5. Step 5: Solve for x
    x = 351,855,800.74/21,364.29
  6. Step 6: Final answer
    x = 16,469.34

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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.