Home / 37,138.10-51,250.73-20,142.47

Finding the Fourth Proportional to 37,138.10, 51,250.73 and 20,142.47

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Solution

The fourth proportional to 37,138.10, 51,250.73 and 20,142.47 is: 27,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,138.10 : 51,250.73 = 20,142.47 : x
  2. Step 2: Convert to fraction form
    37,138.10/51,250.73 = 20,142.47/x
  3. Step 3: Cross multiply
    37,138.10x = 51,250.73 × 20,142.47
  4. Step 4: Simplify right side
    37,138.10x = 1,032,316,318.92
  5. Step 5: Solve for x
    x = 1,032,316,318.92/37,138.10
  6. Step 6: Final answer
    x = 27,796.70

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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.