Home / 22,666.22-31,281.36-13,237.82

Finding the Fourth Proportional to 22,666.22, 31,281.36 and 13,237.82

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Solution

The fourth proportional to 22,666.22, 31,281.36 and 13,237.82 is: 18,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,666.22 : 31,281.36 = 13,237.82 : x
  2. Step 2: Convert to fraction form
    22,666.22/31,281.36 = 13,237.82/x
  3. Step 3: Cross multiply
    22,666.22x = 31,281.36 × 13,237.82
  4. Step 4: Simplify right side
    22,666.22x = 414,097,013.04
  5. Step 5: Solve for x
    x = 414,097,013.04/22,666.22
  6. Step 6: Final answer
    x = 18,269.35

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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.