Home / 28,089.36-38,742.30-19,591.92

Finding the Fourth Proportional to 28,089.36, 38,742.30 and 19,591.92

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Solution

The fourth proportional to 28,089.36, 38,742.30 and 19,591.92 is: 27,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.36 : 38,742.30 = 19,591.92 : x
  2. Step 2: Convert to fraction form
    28,089.36/38,742.30 = 19,591.92/x
  3. Step 3: Cross multiply
    28,089.36x = 38,742.30 × 19,591.92
  4. Step 4: Simplify right side
    28,089.36x = 759,036,042.22
  5. Step 5: Solve for x
    x = 759,036,042.22/28,089.36
  6. Step 6: Final answer
    x = 27,022.19

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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.