Home / 39,429.36-54,412.67-21,524.76

Finding the Fourth Proportional to 39,429.36, 54,412.67 and 21,524.76

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Solution

The fourth proportional to 39,429.36, 54,412.67 and 21,524.76 is: 29,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.36 : 54,412.67 = 21,524.76 : x
  2. Step 2: Convert to fraction form
    39,429.36/54,412.67 = 21,524.76/x
  3. Step 3: Cross multiply
    39,429.36x = 54,412.67 × 21,524.76
  4. Step 4: Simplify right side
    39,429.36x = 1,171,219,662.71
  5. Step 5: Solve for x
    x = 1,171,219,662.71/39,429.36
  6. Step 6: Final answer
    x = 29,704.25

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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.