Home / 40,288.28-60,427.46-20,581.08

Finding the Fourth Proportional to 40,288.28, 60,427.46 and 20,581.08

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Solution

The fourth proportional to 40,288.28, 60,427.46 and 20,581.08 is: 30,869.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,288.28 : 60,427.46 = 20,581.08 : x
  2. Step 2: Convert to fraction form
    40,288.28/60,427.46 = 20,581.08/x
  3. Step 3: Cross multiply
    40,288.28x = 60,427.46 × 20,581.08
  4. Step 4: Simplify right side
    40,288.28x = 1,243,662,388.46
  5. Step 5: Solve for x
    x = 1,243,662,388.46/40,288.28
  6. Step 6: Final answer
    x = 30,869.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.