Home / 21,905.01-32,862.24-7,112.79

Finding the Fourth Proportional to 21,905.01, 32,862.24 and 7,112.79

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Solution

The fourth proportional to 21,905.01, 32,862.24 and 7,112.79 is: 10,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.01 : 32,862.24 = 7,112.79 : x
  2. Step 2: Convert to fraction form
    21,905.01/32,862.24 = 7,112.79/x
  3. Step 3: Cross multiply
    21,905.01x = 32,862.24 × 7,112.79
  4. Step 4: Simplify right side
    21,905.01x = 233,742,212.05
  5. Step 5: Solve for x
    x = 233,742,212.05/21,905.01
  6. Step 6: Final answer
    x = 10,670.72

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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.