Home / 35,115.69-48,459.19-20,009.20

Finding the Fourth Proportional to 35,115.69, 48,459.19 and 20,009.20

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Solution

The fourth proportional to 35,115.69, 48,459.19 and 20,009.20 is: 27,612.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,115.69 : 48,459.19 = 20,009.20 : x
  2. Step 2: Convert to fraction form
    35,115.69/48,459.19 = 20,009.20/x
  3. Step 3: Cross multiply
    35,115.69x = 48,459.19 × 20,009.20
  4. Step 4: Simplify right side
    35,115.69x = 969,629,624.55
  5. Step 5: Solve for x
    x = 969,629,624.55/35,115.69
  6. Step 6: Final answer
    x = 27,612.43

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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.