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Finding the Fourth Proportional to 35,810.54, 49,414.75 and 20,700.80

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Solution

The fourth proportional to 35,810.54, 49,414.75 and 20,700.80 is: 28,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,810.54 : 49,414.75 = 20,700.80 : x
  2. Step 2: Convert to fraction form
    35,810.54/49,414.75 = 20,700.80/x
  3. Step 3: Cross multiply
    35,810.54x = 49,414.75 × 20,700.80
  4. Step 4: Simplify right side
    35,810.54x = 1,022,924,557.97
  5. Step 5: Solve for x
    x = 1,022,924,557.97/35,810.54
  6. Step 6: Final answer
    x = 28,564.91

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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.