Home / 29,128.61-40,197.10-16,381.79

Finding the Fourth Proportional to 29,128.61, 40,197.10 and 16,381.79

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Solution

The fourth proportional to 29,128.61, 40,197.10 and 16,381.79 is: 22,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.61 : 40,197.10 = 16,381.79 : x
  2. Step 2: Convert to fraction form
    29,128.61/40,197.10 = 16,381.79/x
  3. Step 3: Cross multiply
    29,128.61x = 40,197.10 × 16,381.79
  4. Step 4: Simplify right side
    29,128.61x = 658,500,450.81
  5. Step 5: Solve for x
    x = 658,500,450.81/29,128.61
  6. Step 6: Final answer
    x = 22,606.65

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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.