Home / 29,128.10-40,192.65-16,379.51

Finding the Fourth Proportional to 29,128.10, 40,192.65 and 16,379.51

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Solution

The fourth proportional to 29,128.10, 40,192.65 and 16,379.51 is: 22,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.10 : 40,192.65 = 16,379.51 : x
  2. Step 2: Convert to fraction form
    29,128.10/40,192.65 = 16,379.51/x
  3. Step 3: Cross multiply
    29,128.10x = 40,192.65 × 16,379.51
  4. Step 4: Simplify right side
    29,128.10x = 658,335,711.64
  5. Step 5: Solve for x
    x = 658,335,711.64/29,128.10
  6. Step 6: Final answer
    x = 22,601.40

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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.