Home / 37,642-51,945.36-20,646.64

Finding the Fourth Proportional to 37,642, 51,945.36 and 20,646.64

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Solution

The fourth proportional to 37,642, 51,945.36 and 20,646.64 is: 28,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,642 : 51,945.36 = 20,646.64 : x
  2. Step 2: Convert to fraction form
    37,642/51,945.36 = 20,646.64/x
  3. Step 3: Cross multiply
    37,642x = 51,945.36 × 20,646.64
  4. Step 4: Simplify right side
    37,642x = 1,072,497,147.59
  5. Step 5: Solve for x
    x = 1,072,497,147.59/37,642
  6. Step 6: Final answer
    x = 28,492.03

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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.