Home / 42,823.54-64,216.68-20,340.73

Finding the Fourth Proportional to 42,823.54, 64,216.68 and 20,340.73

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Solution

The fourth proportional to 42,823.54, 64,216.68 and 20,340.73 is: 30,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,823.54 : 64,216.68 = 20,340.73 : x
  2. Step 2: Convert to fraction form
    42,823.54/64,216.68 = 20,340.73/x
  3. Step 3: Cross multiply
    42,823.54x = 64,216.68 × 20,340.73
  4. Step 4: Simplify right side
    42,823.54x = 1,306,214,149.38
  5. Step 5: Solve for x
    x = 1,306,214,149.38/42,823.54
  6. Step 6: Final answer
    x = 30,502.25

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1.5x scale

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.