Home / 35,318.78-48,742.65-20,216.18

Finding the Fourth Proportional to 35,318.78, 48,742.65 and 20,216.18

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Solution

The fourth proportional to 35,318.78, 48,742.65 and 20,216.18 is: 27,899.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,318.78 : 48,742.65 = 20,216.18 : x
  2. Step 2: Convert to fraction form
    35,318.78/48,742.65 = 20,216.18/x
  3. Step 3: Cross multiply
    35,318.78x = 48,742.65 × 20,216.18
  4. Step 4: Simplify right side
    35,318.78x = 985,390,186.08
  5. Step 5: Solve for x
    x = 985,390,186.08/35,318.78
  6. Step 6: Final answer
    x = 27,899.89

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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.