Home / 21,660.56-32,490.70-8,837.68

Finding the Fourth Proportional to 21,660.56, 32,490.70 and 8,837.68

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Solution

The fourth proportional to 21,660.56, 32,490.70 and 8,837.68 is: 13,256.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660.56 : 32,490.70 = 8,837.68 : x
  2. Step 2: Convert to fraction form
    21,660.56/32,490.70 = 8,837.68/x
  3. Step 3: Cross multiply
    21,660.56x = 32,490.70 × 8,837.68
  4. Step 4: Simplify right side
    21,660.56x = 287,142,306.26
  5. Step 5: Solve for x
    x = 287,142,306.26/21,660.56
  6. Step 6: Final answer
    x = 13,256.46

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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.