Home / 28,717.48-39,630.25-15,971.82

Finding the Fourth Proportional to 28,717.48, 39,630.25 and 15,971.82

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Solution

The fourth proportional to 28,717.48, 39,630.25 and 15,971.82 is: 22,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.48 : 39,630.25 = 15,971.82 : x
  2. Step 2: Convert to fraction form
    28,717.48/39,630.25 = 15,971.82/x
  3. Step 3: Cross multiply
    28,717.48x = 39,630.25 × 15,971.82
  4. Step 4: Simplify right side
    28,717.48x = 632,967,219.56
  5. Step 5: Solve for x
    x = 632,967,219.56/28,717.48
  6. Step 6: Final answer
    x = 22,041.18

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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.