Home / 39,515.16-54,529.24-21,610.76

Finding the Fourth Proportional to 39,515.16, 54,529.24 and 21,610.76

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Solution

The fourth proportional to 39,515.16, 54,529.24 and 21,610.76 is: 29,821.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,515.16 : 54,529.24 = 21,610.76 : x
  2. Step 2: Convert to fraction form
    39,515.16/54,529.24 = 21,610.76/x
  3. Step 3: Cross multiply
    39,515.16x = 54,529.24 × 21,610.76
  4. Step 4: Simplify right side
    39,515.16x = 1,178,418,318.62
  5. Step 5: Solve for x
    x = 1,178,418,318.62/39,515.16
  6. Step 6: Final answer
    x = 29,821.93

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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.