Home / 39,438.72-54,425.88-21,533.94

Finding the Fourth Proportional to 39,438.72, 54,425.88 and 21,533.94

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Solution

The fourth proportional to 39,438.72, 54,425.88 and 21,533.94 is: 29,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,438.72 : 54,425.88 = 21,533.94 : x
  2. Step 2: Convert to fraction form
    39,438.72/54,425.88 = 21,533.94/x
  3. Step 3: Cross multiply
    39,438.72x = 54,425.88 × 21,533.94
  4. Step 4: Simplify right side
    39,438.72x = 1,172,003,634.37
  5. Step 5: Solve for x
    x = 1,172,003,634.37/39,438.72
  6. Step 6: Final answer
    x = 29,717.08

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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.