Home / 21,776.49-32,664.15-6,985.35

Finding the Fourth Proportional to 21,776.49, 32,664.15 and 6,985.35

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Solution

The fourth proportional to 21,776.49, 32,664.15 and 6,985.35 is: 10,477.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.49 : 32,664.15 = 6,985.35 : x
  2. Step 2: Convert to fraction form
    21,776.49/32,664.15 = 6,985.35/x
  3. Step 3: Cross multiply
    21,776.49x = 32,664.15 × 6,985.35
  4. Step 4: Simplify right side
    21,776.49x = 228,170,520.20
  5. Step 5: Solve for x
    x = 228,170,520.20/21,776.49
  6. Step 6: Final answer
    x = 10,477.84

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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.