Home / 21,277.69-29,341.46-14,105.12

Finding the Fourth Proportional to 21,277.69, 29,341.46 and 14,105.12

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Solution

The fourth proportional to 21,277.69, 29,341.46 and 14,105.12 is: 19,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.69 : 29,341.46 = 14,105.12 : x
  2. Step 2: Convert to fraction form
    21,277.69/29,341.46 = 14,105.12/x
  3. Step 3: Cross multiply
    21,277.69x = 29,341.46 × 14,105.12
  4. Step 4: Simplify right side
    21,277.69x = 413,864,702.83
  5. Step 5: Solve for x
    x = 413,864,702.83/21,277.69
  6. Step 6: Final answer
    x = 19,450.64

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Double scale
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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.