Home / 31,072.30-42,879.70-16,925.24

Finding the Fourth Proportional to 31,072.30, 42,879.70 and 16,925.24

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Solution

The fourth proportional to 31,072.30, 42,879.70 and 16,925.24 is: 23,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,072.30 : 42,879.70 = 16,925.24 : x
  2. Step 2: Convert to fraction form
    31,072.30/42,879.70 = 16,925.24/x
  3. Step 3: Cross multiply
    31,072.30x = 42,879.70 × 16,925.24
  4. Step 4: Simplify right side
    31,072.30x = 725,749,213.63
  5. Step 5: Solve for x
    x = 725,749,213.63/31,072.30
  6. Step 6: Final answer
    x = 23,356.79

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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.