Home / 21,406.60-32,061.30-11,006.20

Finding the Fourth Proportional to 21,406.60, 32,061.30 and 11,006.20

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Solution

The fourth proportional to 21,406.60, 32,061.30 and 11,006.20 is: 16,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406.60 : 32,061.30 = 11,006.20 : x
  2. Step 2: Convert to fraction form
    21,406.60/32,061.30 = 11,006.20/x
  3. Step 3: Cross multiply
    21,406.60x = 32,061.30 × 11,006.20
  4. Step 4: Simplify right side
    21,406.60x = 352,873,080.06
  5. Step 5: Solve for x
    x = 352,873,080.06/21,406.60
  6. Step 6: Final answer
    x = 16,484.31

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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.