Home / 35,415.76-53,097.60-21,380.80

Finding the Fourth Proportional to 35,415.76, 53,097.60 and 21,380.80

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Solution

The fourth proportional to 35,415.76, 53,097.60 and 21,380.80 is: 32,055.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,415.76 : 53,097.60 = 21,380.80 : x
  2. Step 2: Convert to fraction form
    35,415.76/53,097.60 = 21,380.80/x
  3. Step 3: Cross multiply
    35,415.76x = 53,097.60 × 21,380.80
  4. Step 4: Simplify right side
    35,415.76x = 1,135,269,166.08
  5. Step 5: Solve for x
    x = 1,135,269,166.08/35,415.76
  6. Step 6: Final answer
    x = 32,055.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.