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Finding the Fourth Proportional to 21,650.99, 32,477.40 and 6,859.58

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Solution

The fourth proportional to 21,650.99, 32,477.40 and 6,859.58 is: 10,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650.99 : 32,477.40 = 6,859.58 : x
  2. Step 2: Convert to fraction form
    21,650.99/32,477.40 = 6,859.58/x
  3. Step 3: Cross multiply
    21,650.99x = 32,477.40 × 6,859.58
  4. Step 4: Simplify right side
    21,650.99x = 222,781,323.49
  5. Step 5: Solve for x
    x = 222,781,323.49/21,650.99
  6. Step 6: Final answer
    x = 10,289.66

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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.