Home / 21,893.56-32,765.64-18,387.16

Finding the Fourth Proportional to 21,893.56, 32,765.64 and 18,387.16

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Solution

The fourth proportional to 21,893.56, 32,765.64 and 18,387.16 is: 27,518.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893.56 : 32,765.64 = 18,387.16 : x
  2. Step 2: Convert to fraction form
    21,893.56/32,765.64 = 18,387.16/x
  3. Step 3: Cross multiply
    21,893.56x = 32,765.64 × 18,387.16
  4. Step 4: Simplify right side
    21,893.56x = 602,467,065.18
  5. Step 5: Solve for x
    x = 602,467,065.18/21,893.56
  6. Step 6: Final answer
    x = 27,518.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.