Home / 21,505.36-29,677.28-12,073.92

Finding the Fourth Proportional to 21,505.36, 29,677.28 and 12,073.92

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Solution

The fourth proportional to 21,505.36, 29,677.28 and 12,073.92 is: 16,661.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.36 : 29,677.28 = 12,073.92 : x
  2. Step 2: Convert to fraction form
    21,505.36/29,677.28 = 12,073.92/x
  3. Step 3: Cross multiply
    21,505.36x = 29,677.28 × 12,073.92
  4. Step 4: Simplify right side
    21,505.36x = 358,321,104.54
  5. Step 5: Solve for x
    x = 358,321,104.54/21,505.36
  6. Step 6: Final answer
    x = 16,661.94

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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.