Home / 39,510.28-54,524.24-21,605.36

Finding the Fourth Proportional to 39,510.28, 54,524.24 and 21,605.36

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Solution

The fourth proportional to 39,510.28, 54,524.24 and 21,605.36 is: 29,815.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,510.28 : 54,524.24 = 21,605.36 : x
  2. Step 2: Convert to fraction form
    39,510.28/54,524.24 = 21,605.36/x
  3. Step 3: Cross multiply
    39,510.28x = 54,524.24 × 21,605.36
  4. Step 4: Simplify right side
    39,510.28x = 1,178,015,833.93
  5. Step 5: Solve for x
    x = 1,178,015,833.93/39,510.28
  6. Step 6: Final answer
    x = 29,815.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.