Home / 15,456.03-21,313.29-13,225.29

Finding the Fourth Proportional to 15,456.03, 21,313.29 and 13,225.29

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Solution

The fourth proportional to 15,456.03, 21,313.29 and 13,225.29 is: 18,237.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,456.03 : 21,313.29 = 13,225.29 : x
  2. Step 2: Convert to fraction form
    15,456.03/21,313.29 = 13,225.29/x
  3. Step 3: Cross multiply
    15,456.03x = 21,313.29 × 13,225.29
  4. Step 4: Simplify right side
    15,456.03x = 281,874,441.10
  5. Step 5: Solve for x
    x = 281,874,441.10/15,456.03
  6. Step 6: Final answer
    x = 18,237.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.