Home / 28,971.32-39,983.76-17,647.46

Finding the Fourth Proportional to 28,971.32, 39,983.76 and 17,647.46

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Solution

The fourth proportional to 28,971.32, 39,983.76 and 17,647.46 is: 24,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.32 : 39,983.76 = 17,647.46 : x
  2. Step 2: Convert to fraction form
    28,971.32/39,983.76 = 17,647.46/x
  3. Step 3: Cross multiply
    28,971.32x = 39,983.76 × 17,647.46
  4. Step 4: Simplify right side
    28,971.32x = 705,611,805.25
  5. Step 5: Solve for x
    x = 705,611,805.25/28,971.32
  6. Step 6: Final answer
    x = 24,355.53

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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.