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Finding the Fourth Proportional to 21,739.70, 32,603.01 and 8,410.34

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Solution

The fourth proportional to 21,739.70, 32,603.01 and 8,410.34 is: 12,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.70 : 32,603.01 = 8,410.34 : x
  2. Step 2: Convert to fraction form
    21,739.70/32,603.01 = 8,410.34/x
  3. Step 3: Cross multiply
    21,739.70x = 32,603.01 × 8,410.34
  4. Step 4: Simplify right side
    21,739.70x = 274,202,236.11
  5. Step 5: Solve for x
    x = 274,202,236.11/21,739.70
  6. Step 6: Final answer
    x = 12,612.98

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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.