Home / 40,101.60-55,341.69-21,953.60

Finding the Fourth Proportional to 40,101.60, 55,341.69 and 21,953.60

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Solution

The fourth proportional to 40,101.60, 55,341.69 and 21,953.60 is: 30,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,101.60 : 55,341.69 = 21,953.60 : x
  2. Step 2: Convert to fraction form
    40,101.60/55,341.69 = 21,953.60/x
  3. Step 3: Cross multiply
    40,101.60x = 55,341.69 × 21,953.60
  4. Step 4: Simplify right side
    40,101.60x = 1,214,949,325.58
  5. Step 5: Solve for x
    x = 1,214,949,325.58/40,101.60
  6. Step 6: Final answer
    x = 30,296.78

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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.