Home / 39,462.48-54,456.64-21,558.12

Finding the Fourth Proportional to 39,462.48, 54,456.64 and 21,558.12

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Solution

The fourth proportional to 39,462.48, 54,456.64 and 21,558.12 is: 29,749.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,462.48 : 54,456.64 = 21,558.12 : x
  2. Step 2: Convert to fraction form
    39,462.48/54,456.64 = 21,558.12/x
  3. Step 3: Cross multiply
    39,462.48x = 54,456.64 × 21,558.12
  4. Step 4: Simplify right side
    39,462.48x = 1,173,983,072.24
  5. Step 5: Solve for x
    x = 1,173,983,072.24/39,462.48
  6. Step 6: Final answer
    x = 29,749.35

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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.