Home / 23,115.16-31,888.63-13,678.26

Finding the Fourth Proportional to 23,115.16, 31,888.63 and 13,678.26

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Solution

The fourth proportional to 23,115.16, 31,888.63 and 13,678.26 is: 18,869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.16 : 31,888.63 = 13,678.26 : x
  2. Step 2: Convert to fraction form
    23,115.16/31,888.63 = 13,678.26/x
  3. Step 3: Cross multiply
    23,115.16x = 31,888.63 × 13,678.26
  4. Step 4: Simplify right side
    23,115.16x = 436,180,972.18
  5. Step 5: Solve for x
    x = 436,180,972.18/23,115.16
  6. Step 6: Final answer
    x = 18,869.91

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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.