Home / 30,239.19-41,720.34-16,807.86

Finding the Fourth Proportional to 30,239.19, 41,720.34 and 16,807.86

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Solution

The fourth proportional to 30,239.19, 41,720.34 and 16,807.86 is: 23,189.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.19 : 41,720.34 = 16,807.86 : x
  2. Step 2: Convert to fraction form
    30,239.19/41,720.34 = 16,807.86/x
  3. Step 3: Cross multiply
    30,239.19x = 41,720.34 × 16,807.86
  4. Step 4: Simplify right side
    30,239.19x = 701,229,633.87
  5. Step 5: Solve for x
    x = 701,229,633.87/30,239.19
  6. Step 6: Final answer
    x = 23,189.43

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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.