Home / 32,908.90-45,393.37-21,579.15

Finding the Fourth Proportional to 32,908.90, 45,393.37 and 21,579.15

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Solution

The fourth proportional to 32,908.90, 45,393.37 and 21,579.15 is: 29,765.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,908.90 : 45,393.37 = 21,579.15 : x
  2. Step 2: Convert to fraction form
    32,908.90/45,393.37 = 21,579.15/x
  3. Step 3: Cross multiply
    32,908.90x = 45,393.37 × 21,579.15
  4. Step 4: Simplify right side
    32,908.90x = 979,550,340.24
  5. Step 5: Solve for x
    x = 979,550,340.24/32,908.90
  6. Step 6: Final answer
    x = 29,765.51

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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.