Home / 39,324.32-54,267.63-21,419.27

Finding the Fourth Proportional to 39,324.32, 54,267.63 and 21,419.27

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Solution

The fourth proportional to 39,324.32, 54,267.63 and 21,419.27 is: 29,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,324.32 : 54,267.63 = 21,419.27 : x
  2. Step 2: Convert to fraction form
    39,324.32/54,267.63 = 21,419.27/x
  3. Step 3: Cross multiply
    39,324.32x = 54,267.63 × 21,419.27
  4. Step 4: Simplify right side
    39,324.32x = 1,162,372,747.89
  5. Step 5: Solve for x
    x = 1,162,372,747.89/39,324.32
  6. Step 6: Final answer
    x = 29,558.63

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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.