Home / 28,249.14-38,984.94-15,502.77

Finding the Fourth Proportional to 28,249.14, 38,984.94 and 15,502.77

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Solution

The fourth proportional to 28,249.14, 38,984.94 and 15,502.77 is: 21,394.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.14 : 38,984.94 = 15,502.77 : x
  2. Step 2: Convert to fraction form
    28,249.14/38,984.94 = 15,502.77/x
  3. Step 3: Cross multiply
    28,249.14x = 38,984.94 × 15,502.77
  4. Step 4: Simplify right side
    28,249.14x = 604,374,558.28
  5. Step 5: Solve for x
    x = 604,374,558.28/28,249.14
  6. Step 6: Final answer
    x = 21,394.44

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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.