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Finding the Fourth Proportional to 21,562.88, 32,344.31 and 5,980.50

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Solution

The fourth proportional to 21,562.88, 32,344.31 and 5,980.50 is: 8,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.88 : 32,344.31 = 5,980.50 : x
  2. Step 2: Convert to fraction form
    21,562.88/32,344.31 = 5,980.50/x
  3. Step 3: Cross multiply
    21,562.88x = 32,344.31 × 5,980.50
  4. Step 4: Simplify right side
    21,562.88x = 193,435,160.91
  5. Step 5: Solve for x
    x = 193,435,160.91/21,562.88
  6. Step 6: Final answer
    x = 8,970.75

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Double scale
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1.5x scale

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.