Home / 39,623.88-59,472.78-20,917.74

Finding the Fourth Proportional to 39,623.88, 59,472.78 and 20,917.74

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Solution

The fourth proportional to 39,623.88, 59,472.78 and 20,917.74 is: 31,396.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,623.88 : 59,472.78 = 20,917.74 : x
  2. Step 2: Convert to fraction form
    39,623.88/59,472.78 = 20,917.74/x
  3. Step 3: Cross multiply
    39,623.88x = 59,472.78 × 20,917.74
  4. Step 4: Simplify right side
    39,623.88x = 1,244,036,149.12
  5. Step 5: Solve for x
    x = 1,244,036,149.12/39,623.88
  6. Step 6: Final answer
    x = 31,396.12

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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.