Home / 28,269.96-39,027.14-19,923.72

Finding the Fourth Proportional to 28,269.96, 39,027.14 and 19,923.72

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Solution

The fourth proportional to 28,269.96, 39,027.14 and 19,923.72 is: 27,505.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269.96 : 39,027.14 = 19,923.72 : x
  2. Step 2: Convert to fraction form
    28,269.96/39,027.14 = 19,923.72/x
  3. Step 3: Cross multiply
    28,269.96x = 39,027.14 × 19,923.72
  4. Step 4: Simplify right side
    28,269.96x = 777,565,809.76
  5. Step 5: Solve for x
    x = 777,565,809.76/28,269.96
  6. Step 6: Final answer
    x = 27,505.02

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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.