Home / 39,390.24-59,107.44-20,921.76

Finding the Fourth Proportional to 39,390.24, 59,107.44 and 20,921.76

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Solution

The fourth proportional to 39,390.24, 59,107.44 and 20,921.76 is: 31,394.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,390.24 : 59,107.44 = 20,921.76 : x
  2. Step 2: Convert to fraction form
    39,390.24/59,107.44 = 20,921.76/x
  3. Step 3: Cross multiply
    39,390.24x = 59,107.44 × 20,921.76
  4. Step 4: Simplify right side
    39,390.24x = 1,236,631,673.89
  5. Step 5: Solve for x
    x = 1,236,631,673.89/39,390.24
  6. Step 6: Final answer
    x = 31,394.37

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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.