Home / 28,327.75-39,093.25-15,581.47

Finding the Fourth Proportional to 28,327.75, 39,093.25 and 15,581.47

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Solution

The fourth proportional to 28,327.75, 39,093.25 and 15,581.47 is: 21,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.75 : 39,093.25 = 15,581.47 : x
  2. Step 2: Convert to fraction form
    28,327.75/39,093.25 = 15,581.47/x
  3. Step 3: Cross multiply
    28,327.75x = 39,093.25 × 15,581.47
  4. Step 4: Simplify right side
    28,327.75x = 609,130,302.08
  5. Step 5: Solve for x
    x = 609,130,302.08/28,327.75
  6. Step 6: Final answer
    x = 21,502.95

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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.