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Finding the Fourth Proportional to 21,639.71, 32,461.07 and 6,848.88

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Solution

The fourth proportional to 21,639.71, 32,461.07 and 6,848.88 is: 10,273.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.71 : 32,461.07 = 6,848.88 : x
  2. Step 2: Convert to fraction form
    21,639.71/32,461.07 = 6,848.88/x
  3. Step 3: Cross multiply
    21,639.71x = 32,461.07 × 6,848.88
  4. Step 4: Simplify right side
    21,639.71x = 222,321,938.86
  5. Step 5: Solve for x
    x = 222,321,938.86/21,639.71
  6. Step 6: Final answer
    x = 10,273.80

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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.