Home / 30,129.72-41,574.55-16,700.91

Finding the Fourth Proportional to 30,129.72, 41,574.55 and 16,700.91

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Solution

The fourth proportional to 30,129.72, 41,574.55 and 16,700.91 is: 23,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,129.72 : 41,574.55 = 16,700.91 : x
  2. Step 2: Convert to fraction form
    30,129.72/41,574.55 = 16,700.91/x
  3. Step 3: Cross multiply
    30,129.72x = 41,574.55 × 16,700.91
  4. Step 4: Simplify right side
    30,129.72x = 694,332,817.84
  5. Step 5: Solve for x
    x = 694,332,817.84/30,129.72
  6. Step 6: Final answer
    x = 23,044.78

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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.