Home / 32,921.28-45,434.82-20,183

Finding the Fourth Proportional to 32,921.28, 45,434.82 and 20,183

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Solution

The fourth proportional to 32,921.28, 45,434.82 and 20,183 is: 27,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,921.28 : 45,434.82 = 20,183 : x
  2. Step 2: Convert to fraction form
    32,921.28/45,434.82 = 20,183/x
  3. Step 3: Cross multiply
    32,921.28x = 45,434.82 × 20,183
  4. Step 4: Simplify right side
    32,921.28x = 917,010,972.06
  5. Step 5: Solve for x
    x = 917,010,972.06/32,921.28
  6. Step 6: Final answer
    x = 27,854.66

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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.