Home / 28,195.05-38,909.49-15,448.26

Finding the Fourth Proportional to 28,195.05, 38,909.49 and 15,448.26

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Solution

The fourth proportional to 28,195.05, 38,909.49 and 15,448.26 is: 21,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.05 : 38,909.49 = 15,448.26 : x
  2. Step 2: Convert to fraction form
    28,195.05/38,909.49 = 15,448.26/x
  3. Step 3: Cross multiply
    28,195.05x = 38,909.49 × 15,448.26
  4. Step 4: Simplify right side
    28,195.05x = 601,083,939.98
  5. Step 5: Solve for x
    x = 601,083,939.98/28,195.05
  6. Step 6: Final answer
    x = 21,318.77

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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.