Home / 39,956.72-55,123.47-28,027.85

Finding the Fourth Proportional to 39,956.72, 55,123.47 and 28,027.85

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Solution

The fourth proportional to 39,956.72, 55,123.47 and 28,027.85 is: 38,666.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.72 : 55,123.47 = 28,027.85 : x
  2. Step 2: Convert to fraction form
    39,956.72/55,123.47 = 28,027.85/x
  3. Step 3: Cross multiply
    39,956.72x = 55,123.47 × 28,027.85
  4. Step 4: Simplify right side
    39,956.72x = 1,544,992,073.02
  5. Step 5: Solve for x
    x = 1,544,992,073.02/39,956.72
  6. Step 6: Final answer
    x = 38,666.64

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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.