Home / 22,518.90-31,076.06-13,566.78

Finding the Fourth Proportional to 22,518.90, 31,076.06 and 13,566.78

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Solution

The fourth proportional to 22,518.90, 31,076.06 and 13,566.78 is: 18,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,518.90 : 31,076.06 = 13,566.78 : x
  2. Step 2: Convert to fraction form
    22,518.90/31,076.06 = 13,566.78/x
  3. Step 3: Cross multiply
    22,518.90x = 31,076.06 × 13,566.78
  4. Step 4: Simplify right side
    22,518.90x = 421,602,001.45
  5. Step 5: Solve for x
    x = 421,602,001.45/22,518.90
  6. Step 6: Final answer
    x = 18,722.14

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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.