Home / 21,401.04-32,089.80-6,605.88

Finding the Fourth Proportional to 21,401.04, 32,089.80 and 6,605.88

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Solution

The fourth proportional to 21,401.04, 32,089.80 and 6,605.88 is: 9,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.04 : 32,089.80 = 6,605.88 : x
  2. Step 2: Convert to fraction form
    21,401.04/32,089.80 = 6,605.88/x
  3. Step 3: Cross multiply
    21,401.04x = 32,089.80 × 6,605.88
  4. Step 4: Simplify right side
    21,401.04x = 211,981,368.02
  5. Step 5: Solve for x
    x = 211,981,368.02/21,401.04
  6. Step 6: Final answer
    x = 9,905.19

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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.