Home / 20,669.04-30,985.20-7,518.96

Finding the Fourth Proportional to 20,669.04, 30,985.20 and 7,518.96

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Solution

The fourth proportional to 20,669.04, 30,985.20 and 7,518.96 is: 11,271.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.04 : 30,985.20 = 7,518.96 : x
  2. Step 2: Convert to fraction form
    20,669.04/30,985.20 = 7,518.96/x
  3. Step 3: Cross multiply
    20,669.04x = 30,985.20 × 7,518.96
  4. Step 4: Simplify right side
    20,669.04x = 232,976,479.39
  5. Step 5: Solve for x
    x = 232,976,479.39/20,669.04
  6. Step 6: Final answer
    x = 11,271.76

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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.