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Finding the Fourth Proportional to 21,696.04, 32,539.98 and 6,905.12

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Solution

The fourth proportional to 21,696.04, 32,539.98 and 6,905.12 is: 10,356.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,696.04 : 32,539.98 = 6,905.12 : x
  2. Step 2: Convert to fraction form
    21,696.04/32,539.98 = 6,905.12/x
  3. Step 3: Cross multiply
    21,696.04x = 32,539.98 × 6,905.12
  4. Step 4: Simplify right side
    21,696.04x = 224,692,466.70
  5. Step 5: Solve for x
    x = 224,692,466.70/21,696.04
  6. Step 6: Final answer
    x = 10,356.38

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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.