Home / 28,587.30-39,435.96-19,505.85

Finding the Fourth Proportional to 28,587.30, 39,435.96 and 19,505.85

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Solution

The fourth proportional to 28,587.30, 39,435.96 and 19,505.85 is: 26,908.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587.30 : 39,435.96 = 19,505.85 : x
  2. Step 2: Convert to fraction form
    28,587.30/39,435.96 = 19,505.85/x
  3. Step 3: Cross multiply
    28,587.30x = 39,435.96 × 19,505.85
  4. Step 4: Simplify right side
    28,587.30x = 769,231,920.37
  5. Step 5: Solve for x
    x = 769,231,920.37/28,587.30
  6. Step 6: Final answer
    x = 26,908.17

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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.