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Finding the Fourth Proportional to 21,709, 32,564.88 and 6,127.84

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Solution

The fourth proportional to 21,709, 32,564.88 and 6,127.84 is: 9,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709 : 32,564.88 = 6,127.84 : x
  2. Step 2: Convert to fraction form
    21,709/32,564.88 = 6,127.84/x
  3. Step 3: Cross multiply
    21,709x = 32,564.88 × 6,127.84
  4. Step 4: Simplify right side
    21,709x = 199,552,374.26
  5. Step 5: Solve for x
    x = 199,552,374.26/21,709
  6. Step 6: Final answer
    x = 9,192.15

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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.