Home / 35,309.64-48,708.90-21,876.60

Finding the Fourth Proportional to 35,309.64, 48,708.90 and 21,876.60

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Solution

The fourth proportional to 35,309.64, 48,708.90 and 21,876.60 is: 30,178.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,309.64 : 48,708.90 = 21,876.60 : x
  2. Step 2: Convert to fraction form
    35,309.64/48,708.90 = 21,876.60/x
  3. Step 3: Cross multiply
    35,309.64x = 48,708.90 × 21,876.60
  4. Step 4: Simplify right side
    35,309.64x = 1,065,585,121.74
  5. Step 5: Solve for x
    x = 1,065,585,121.74/35,309.64
  6. Step 6: Final answer
    x = 30,178.31

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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.