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Finding the Fourth Proportional to 35,866.60, 49,495 and 20,757.16

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Solution

The fourth proportional to 35,866.60, 49,495 and 20,757.16 is: 28,644.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,866.60 : 49,495 = 20,757.16 : x
  2. Step 2: Convert to fraction form
    35,866.60/49,495 = 20,757.16/x
  3. Step 3: Cross multiply
    35,866.60x = 49,495 × 20,757.16
  4. Step 4: Simplify right side
    35,866.60x = 1,027,375,634.20
  5. Step 5: Solve for x
    x = 1,027,375,634.20/35,866.60
  6. Step 6: Final answer
    x = 28,644.36

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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.