Home / 32,650.09-45,043.70-21,315.66

Finding the Fourth Proportional to 32,650.09, 45,043.70 and 21,315.66

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Solution

The fourth proportional to 32,650.09, 45,043.70 and 21,315.66 is: 29,406.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,650.09 : 45,043.70 = 21,315.66 : x
  2. Step 2: Convert to fraction form
    32,650.09/45,043.70 = 21,315.66/x
  3. Step 3: Cross multiply
    32,650.09x = 45,043.70 × 21,315.66
  4. Step 4: Simplify right side
    32,650.09x = 960,135,918.85
  5. Step 5: Solve for x
    x = 960,135,918.85/32,650.09
  6. Step 6: Final answer
    x = 29,406.84

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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.