Home / 42,006.12-57,969.78-23,143.92

Finding the Fourth Proportional to 42,006.12, 57,969.78 and 23,143.92

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Solution

The fourth proportional to 42,006.12, 57,969.78 and 23,143.92 is: 31,939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,006.12 : 57,969.78 = 23,143.92 : x
  2. Step 2: Convert to fraction form
    42,006.12/57,969.78 = 23,143.92/x
  3. Step 3: Cross multiply
    42,006.12x = 57,969.78 × 23,143.92
  4. Step 4: Simplify right side
    42,006.12x = 1,341,647,950.74
  5. Step 5: Solve for x
    x = 1,341,647,950.74/42,006.12
  6. Step 6: Final answer
    x = 31,939.34

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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.