Home / 21,776.22-32,664.51-6,985.16

Finding the Fourth Proportional to 21,776.22, 32,664.51 and 6,985.16

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Solution

The fourth proportional to 21,776.22, 32,664.51 and 6,985.16 is: 10,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.22 : 32,664.51 = 6,985.16 : x
  2. Step 2: Convert to fraction form
    21,776.22/32,664.51 = 6,985.16/x
  3. Step 3: Cross multiply
    21,776.22x = 32,664.51 × 6,985.16
  4. Step 4: Simplify right side
    21,776.22x = 228,166,828.67
  5. Step 5: Solve for x
    x = 228,166,828.67/21,776.22
  6. Step 6: Final answer
    x = 10,477.80

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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.