Home / 37,139.09-51,252.34-20,143.36

Finding the Fourth Proportional to 37,139.09, 51,252.34 and 20,143.36

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Solution

The fourth proportional to 37,139.09, 51,252.34 and 20,143.36 is: 27,798.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,139.09 : 51,252.34 = 20,143.36 : x
  2. Step 2: Convert to fraction form
    37,139.09/51,252.34 = 20,143.36/x
  3. Step 3: Cross multiply
    37,139.09x = 51,252.34 × 20,143.36
  4. Step 4: Simplify right side
    37,139.09x = 1,032,394,079.20
  5. Step 5: Solve for x
    x = 1,032,394,079.20/37,139.09
  6. Step 6: Final answer
    x = 27,798.04

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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.