Home / 42,826.71-64,212.66-20,595.81

Finding the Fourth Proportional to 42,826.71, 64,212.66 and 20,595.81

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Solution

The fourth proportional to 42,826.71, 64,212.66 and 20,595.81 is: 30,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,826.71 : 64,212.66 = 20,595.81 : x
  2. Step 2: Convert to fraction form
    42,826.71/64,212.66 = 20,595.81/x
  3. Step 3: Cross multiply
    42,826.71x = 64,212.66 × 20,595.81
  4. Step 4: Simplify right side
    42,826.71x = 1,322,511,744.95
  5. Step 5: Solve for x
    x = 1,322,511,744.95/42,826.71
  6. Step 6: Final answer
    x = 30,880.54

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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.