Home / 28,139.79-42,239.42-27,504.48

Finding the Fourth Proportional to 28,139.79, 42,239.42 and 27,504.48

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Solution

The fourth proportional to 28,139.79, 42,239.42 and 27,504.48 is: 41,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139.79 : 42,239.42 = 27,504.48 : x
  2. Step 2: Convert to fraction form
    28,139.79/42,239.42 = 27,504.48/x
  3. Step 3: Cross multiply
    28,139.79x = 42,239.42 × 27,504.48
  4. Step 4: Simplify right side
    28,139.79x = 1,161,773,145.08
  5. Step 5: Solve for x
    x = 1,161,773,145.08/28,139.79
  6. Step 6: Final answer
    x = 41,285.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.